What Are Mammals: Explained



The official mammal class is Mammalia. Types of animals that are mammals include warm-blooded vertebrates that have hair or fur and whose babies drink milk. Unlike other animal types like birds and insects, all mammal babies drink milk that comes from their mother’s bodies. This is one of the key ways to know if an animal is a mammal. 

What Are Mammals? – The 10 Characteristics You Need to Know

Mammals have many other unique characteristics compared to other animal types. You can use some of these key mammal markers to identify whether an animal is a mammal:

  1. Warm-blooded vertebrates – Mammals are endothermic, meaning they have a constant body temperature. Mammals are also vertebrates, meaning they have a backbone
  2. Red Blood Cells Without Nucleus – Mammals have adult (mature) red blood cells, known as erythrocytes, that lack a nucleus. This is unique compared to other vertebrates. 
  3. Has hair or fur – Mammals commonly have hair, or fur. Though hair and fur are chemically similar and both made of keratin, they are characteristically different. Hair is normally longer and thinner than fur, while fur is usually shorter and coarser. Both serve as insulators for animals. 
  4. Contains a Malleus, Incus, and stapes – The Malleus is a small bone in the middle ear that is shaped like a hammer. It connects the inner surface of the eardrum with the incus. Given it’s shape, the name is derived from the latin word for ‘mallet’. The incus is shaped like an anvil and serves a similar function, vibrating to transmit sound. The stapes is a stirrup shaped bone. Together they form the ‘hammer, anvil, and stirrup’, three of the smallest bones in the human body. The stapes is the actual smallest. 
  5. Able to produce milk Mammals contain mammary glands. These glands give them the ability to produce milk to feed their offspring.
  6. A diaphragm – Mammals have a diaphragm sitting between their heart and lungs 
  7. Hinged Lower Jaw Connected To Skull – Mammals have a hinged lower jaw that connects directly to the skull. By comparison, all over vertebrates connect through another bone known as the quadrate. This mammal articulation allows them to more easily grasp and chew food, as well as chew sideways. 
  8. Left aortic arch – In mammals, the fourth (left) pharyngeal artery is most commonly the arch of the aorta. This differs compared to other animal types. There can be rare cases where mammals have a right aortic arch variant. 
  9. Neocortex – Mammals commonly have a neocortex in their brain. This specialized region allows them to both hear and see.
  10. Live Birth6 – Mammals are viviparous, meaning they give birth to live babies. There are three different types of mammal birth. Monotremes, marsupial, and placental mammals, discussed further below. 

Mammal Exceptions

There are some exceptions to the mammal criteria. Whales are mammals but they are born without hair or fur as it has typically gone after the fetal stage. Yes, that means the blue whale is in fact a mammal!

Monotremes like the duck-billed platypus and echindnas are a whole category of egg-laying mammals that are the only mammals which do NOT give birth to live young. Instead, animals like the platypus and echindnas actually lay eggs.

The Three Different Types of Mammal Births

Monotremes

A rare and unusual category of mammal birth where the animal lays eggs. There are only five known monotremes mammals on the planet, with the platypus and echidna’s being the most well known.

Marsupial

Marsupial mammals give birth to their young before they are fully developed. The babies then complete their growth outside of the mother but in a ‘pouch’. Well-known marsupial examples include kangaroos, opossums, and wombats. 

Placental Mammals

Members of this birth group have a birth procedure containing a placenta. The presence of a placenta transfers important nutrients between the mother and offspring, helping protect the young and ensure a well-developed birth. Placental births are the most common among all mammals with examples including dogs, horses, cats, and humans. 

Which Types of Animals Are Mammals?

A Aardvark
Aardvark

Can move 2ft of soil in just 15 seconds!

A Abyssinian
Abyssinian

The oldest breed of cat in the world!

A Addax
Addax

The hooves of the addax are splayed and have flat, springy soles, one of the adaptations that help it walk over sand.

A Affenpinscher
Affenpinscher

First bred in 17th century Germany!

A Afghan Hound
Afghan Hound

First used as a shepherd and hunter!

A African Bush Elephant
African Bush Elephant

Can drink up to 50 gallons a day

A African Civet
African Civet

Secretes up to 4g of musk every week!

A African Forest Elephant
African Forest Elephant

Have large rounded ears to help keep them cool!

A African Palm Civet
African Palm Civet

Solitary but gathers in groups!

A African Wild Dog
African Wild Dog

Also known as the painted dog!

A Aidi
Aidi

This dog has a thick coat of fur despite its origins in Morocco, a country known for its hot temperatures.

A Ainu
Ainu

An innate sense of direction!

A Airedale Terrier
Airedale Terrier

Very intelligent, independent and strong-minded!

A Airedoodle
Airedoodle

This is a great pooch for rough-housing and one-to-one.

A Akbash
Akbash

Often used as a guard dog!

A Akita
Akita

Very clean, intelligent and loyal!

A Akita Shepherd
Akita Shepherd

The Akita Shepherd descends from a lineage of working dogs.

A Alabai
Alabai

The Alabai’s genes indicate that this breed has been around for more than 5,000 years.

A Alaskan Husky
Alaskan Husky

The Alaskan Husky is one of the most common sled dogs in the world

A Alaskan Klee Kai
Alaskan Klee Kai

The Alaskan Klee Kai is very vocal and isn't shy when communicating with his family.

A Alaskan Malamute
Alaskan Malamute

Often used as sled dogs!

A Alaskan Shepherd
Alaskan Shepherd

This dog’s Malamute ancestors once came to America across the Bering Strait.

A Alpaca
Alpaca

They can spit up to 10 feet.

A Alpine Dachsbracke
Alpine Dachsbracke

Good companion and hard-working breed!

A Alpine Goat
Alpine Goat

Alpine goats are the most common type of goat used for milk, cheese, and other dairy products

A Alusky
Alusky

Alusky dogs are known for their sledding pulling skills.

A Amazon River Dolphin (Pink Dolphin)
Amazon River Dolphin (Pink Dolphin)

Also known as the 'Pink Dolphin'

A American Bulldog
American Bulldog

Can jump up to 6ft high!

A American Cocker Spaniel
American Cocker Spaniel

Merry, outgoing, and eager to please!

A American Coonhound
American Coonhound

Easygoing and people-friendly!

A American Eskimo Dog
American Eskimo Dog

The American Eskimo has splendid all white fur and an upturned tail

A American Foxhound
American Foxhound

Sweet, kind, loyal, and very loving!

A American Hairless Terrier
American Hairless Terrier

The American hairless terrier comes in two varieties with one having a very short coat.

A American Leopard Hound
American Leopard Hound

This breed is also known as the American Leopard Cur. The name was formally changed to American Leopard Hound in 2008.

A American Pit Bull Terrier
American Pit Bull Terrier

These dogs are very energetic and would be up for a game at any given point of time

A American Pygmy Goat
American Pygmy Goat

Can jump up to 5 feet

A American Staffordshire Terrier
American Staffordshire Terrier

Bred to be extremely friendly!

A American Water Spaniel
American Water Spaniel

Friendly and intelligent!

A Amur Leopard
Amur Leopard

The Amur leopard may be the rarest big cat on Earth!

A Anatolian Shepherd Dog
Anatolian Shepherd Dog

Guards it's master's flocks!

A Angora Goat
Angora Goat

Each adult Angora goat produces about 12 inches of mohair annually while kids have about 8 inches.

A Anteater
Anteater

Found throughout the Southern Hemisphere!

A Antelope
Antelope

Renew their horns every year!

A Appenzeller Dog
Appenzeller Dog

Herding dog by nature!

A Apple Head Chihuahua
Apple Head Chihuahua

Apple Head Chihuahuas are toy breed dogs with a history dating back to ancient Mexico. They are lovable, loyal, smart and courageous with a lengthy lifespan despite being the world's smallest canines.

A Arctic Fox
Arctic Fox

Extremely thick winter fur!

A Arctic Hare
Arctic Hare

Eats berries found in the snow!

A Arctic Wolf
Arctic Wolf

Incredibly versatile and adaptive!

A Armadillo
Armadillo

Can curl into a hard, protective ball!

A Asian Elephant
Asian Elephant

Domesticated for hundreds of years!

A Asian Palm Civet
Asian Palm Civet

It mainly eats mangos and coffee!

A Asiatic Black Bear
Asiatic Black Bear

Known to eat 160 different tree-borne fruits in Thailand!

A Aurochs
Aurochs

Extinct ancestor of all domesticated cattle!

A Aussiedoodle
Aussiedoodle

The breed has its own popular Instagram page (Aussiedoodles Daily)!

A Aussiedor
Aussiedor

Aussiedors come in black, brown, cream, yellow, and almost every imaginable color due to their parentage!

A Australian Bulldog
Australian Bulldog

The Aussie is a strong swimmer, a good workout in nice weather.

A Australian Cattle Dog
Australian Cattle Dog

High energy levels and active minds!

A Australian Kelpie Dog
Australian Kelpie Dog

Friendly, intelligent and energetic!

A Australian Labradoodle
Australian Labradoodle

The "Australian" just refers to where the breed originated

A Australian Mist
Australian Mist

First bred in the 1700s!

A Australian Retriever
Australian Retriever

The Australian Retriever may have two different eye colors.

A Australian Shepherd
Australian Shepherd

Sweet, faithful and affectionate!

A Australian Terrier
Australian Terrier

Spirited, alert and courageous!

A Axolotl
Axolotl

Found only in one complex of lakes!

A Aye Aye
Aye Aye

Thought to be extinct until 1957!

A Babirusa
Babirusa

Babirusas can stand on their back hooves to eat leaves on the lower branches of a tree.

A Baboon
Baboon

Can travel more than four miles a day!

A Bactrian Camel
Bactrian Camel

The camel with two humps!

A Badger
Badger

Can reach speeds of 30 km/h!

A Baleen Whale
Baleen Whale

“Sings” a whale song during breeding season.

A Balinese
Balinese

Playful and energetic breed!

A Balkan Lynx
Balkan Lynx

The Balkan lynx communicates mostly with its ears

A Banded Palm Civet
Banded Palm Civet

Markings give it camouflage!

A Bandicoot
Bandicoot

Bandicoot Many species are endangered or extinct!

A Barbet
Barbet

This dog has the nickname ‘Mud dog’ because it likes to play in muddy, swamp-like areas.

A Basenji Dog
Basenji Dog

Alert, affectionate and energetic!

A Bassador
Bassador

This dog is also known as a Bassetdor or a Basset Lab.

A Basset Fauve de Bretagne
Basset Fauve de Bretagne

A friendly and intelligent hunting dog that loves nothing more than to spend time with its owner.

A Basset Hound
Basset Hound

Forget the training when not rewarded!

A Bassetoodle
Bassetoodle

Basset hounds have been around since the 7th century, but the bassetoodle made its first appearance in the 2000s.

A Bat
Bat

Detects prey using echolocation!

A Bavarian Mountain Hound
Bavarian Mountain Hound

Calm, quiet and poised!

A Bea-Tzu
Bea-Tzu

The Bea-Tzu has a fast-growing coat

A Beabull
Beabull

An excellent companion for cats!

A Beagador
Beagador

Beagadors like to dig, so make sure your garden has a good fence around it.

A Beagle
Beagle

Have become popular family pets!

A Beagle Shepherd
Beagle Shepherd

This dog can perform a wide range of exotic and acrobatic tricks that are not expected of a dog this size.

A Beaglier
Beaglier

These dogs have great sniffer abilities

A Beago
Beago

Beagos are good swimmers like their Golden Retriever parent.

A Bear
Bear

There are 8 different species!

A Bearded Collie
Bearded Collie

Weekly brushing is mandatory!

A Beaski
Beaski

Beaskis love to play, so get ready to go on plenty of long walks.

A Beauceron
Beauceron

The Beauceron is named after the place of its origin (Beauce) in France

A Beaver
Beaver

Builds a dam from sticks and leaves!

A Bedlington Terrier
Bedlington Terrier

Highly active and intelligent dogs!

A Beefalo
Beefalo

Beefalo meat is leaner and higher in protein than beef

A Belgian Shepherd
Belgian Shepherd

The sheepdog is also known as the Groenendael. All four Belgian varieties have nicknames for Belgian villages.

A Belgian Tervuren
Belgian Tervuren

The first breed to win an AKC Herding Championship.

A Bengal Tiger
Bengal Tiger

The most numerous species of tiger!

A Bergamasco
Bergamasco

Bergamascos are excellent problem solvers; they were bred to be independent as they work alongside their nomadic shepherd owners.

A Berger Picard
Berger Picard

Berger means shepherd in French

A Bernedoodle
Bernedoodle

The Bernedoodle was first bred in 2003 to create a dog with a similar temperament to the Bernese Mountain Dog that would have a longer lifespan.

A Bernese Mountain Dog
Bernese Mountain Dog

Very loyal, faithful and affectionate!

A Bernese Shepherd
Bernese Shepherd

Bernese shepherds prefer cool climates

A Bichon Frise
Bichon Frise

Gentle mannered, playful and affectionate!

A Bichpoo
Bichpoo

Despite its small size, the alert nature and sharp bark of this canine make it a good watch dog.

A Biewer Terrier
Biewer Terrier

A toy terrier dog and is elegant and tri-colored.

A Bighorn Sheep
Bighorn Sheep

Bighorn rams can run at speeds up to 40 miles per hour when fighting for dominance.

A Bilby
Bilby

In Australia, the chocolate bilby replaces the chocolate bunny for Easter.

A Binturong
Binturong

Also known as the Asian Bearcat!

A Birman
Birman

Also known as the Sacred Cat of Burma!

A Bison
Bison

Largest mammal in North America!

A Black And Tan Coonhound
Black And Tan Coonhound

This dog has its own unique howl.

A Black Rhinoceros
Black Rhinoceros

Horns can grow to 1.5m!

A Black Russian Terrier
Black Russian Terrier

Confident, calm and highly intelligent!

A Black-Footed Ferret
Black-Footed Ferret

Black footed ferrets are the only ones native to North America.

A Bloodhound
Bloodhound

Affectionate, gentle and even-tempered!

A Blue Lacy Dog
Blue Lacy Dog

Originated in Texas in the mid 1800s!

A Blue Picardy Spaniel
Blue Picardy Spaniel

The Blue Picardy is also known as the Epagneul Bleu de Picardie in French

A Blue Whale
Blue Whale

The largest animal on Earth

A Bluetick Coonhound
Bluetick Coonhound

Has an uncanny knack for problem-solving!

A Bobcat
Bobcat

About double the size of a domestic cat!

A Boggle
Boggle

Boggles at animal rescues are often mistaken for pitbulls because they have a similar facial structure.

A Boglen Terrier
Boglen Terrier

Boglen terriers are also occasionally known as boggles.

A Bolognese Dog
Bolognese Dog

From the northern Italian city of Bologna!

A Bombay
Bombay

Bred to look like a black panther!

A Bongo
Bongo

Long and heavy spiralled horns!

A Bonobo
Bonobo

Shares 97% of the same DNA as humans!

A Borador
Borador

Boradors make excellent police dogs and are used often on search and rescue missions.

A Border Collie
Border Collie

Highly intelligent and alert breed!

A Border Terrier
Border Terrier

Small, rough-coated breed of terrier!

A Bordoodle
Bordoodle

Bordoodles are much quieter than other Doodles and require far less exercise.

A Borkie
Borkie

Most Borkies inherit the signature howl of their Beagle parent.

A Bornean Orang-utan
Bornean Orang-utan

Known to use large leaves as umbrellas!

A Borneo Elephant
Borneo Elephant

The smallest species of elephant!

A Boston Terrier
Boston Terrier

Friendly, lovable and very strong!

A Bottlenose Dolphin
Bottlenose Dolphin

Stays in groups from 15 to 2,000 in number!'

A Bouvier Des Flandres
Bouvier Des Flandres

The name Bouvier des Flandres means cowherd of Flanders in French

A Bowhead Whale
Bowhead Whale

Bowhead Whales can make hundreds of distinct songs they use to communicate with one another.

A Boxador
Boxador

Boxadors are extremely smart and catch onto backyard games very quickly!

A Boxer Dog
Boxer Dog

Bright, energetic and playful!

A Boxerdoodle
Boxerdoodle

The Boxerdoodle has a strong hunting dog lineage.

A Boxsky
Boxsky

Boxers were bred to be working war dogs, and their boxsky descendants still love to help out on ranches and other outdoor jobs.

A Boxweiler
Boxweiler

Boxweilers come in a variety of colors, but they usually feature the subtle brindle pattern that their boxer parents are so famous for.

A Boykin Spaniel
Boykin Spaniel

Enthusiastic working dog!

A Brazilian Terrier
Brazilian Terrier

Small body and tri-coloured coat!

A Brittany
Brittany

The breed was formerly known as the Brittany spaniel

A Brown Bear
Brown Bear

A dominant predator in it's environment!

A Brown Hyena
Brown Hyena

They don’t laugh

A Brug
Brug

These small, confident dogs have no fear of approaching much larger dogs.

A Brussels Griffon
Brussels Griffon

The Brussels Griffon prefers to live with another dog so they have a companion to play with.

A Buffalo
Buffalo

Has no real natural predators!

A Bull Shark
Bull Shark

Unpredictable and aggressive temperament!

A Bull Terrier
Bull Terrier

Needs to be kept active!

A Bulldog
Bulldog

Friendly, loving and docile!

A Bullmastiff
Bullmastiff

Courageous, loyal and calm!

A Burmese
Burmese

Adoring, elegant and affectionate!

A Bush Baby
Bush Baby

In a series of leaps, this creature can cover almost 30 feet of distance in just a few seconds.

A Cactus Mouse
Cactus Mouse

In hot temperatures, they lower their metabolism and become inactive to reduce the amount of water they need to survive

A Cairn Terrier
Cairn Terrier

Intelligent, lively and strong!

A Camel
Camel

Can survive without water for 10 months!

A Canaan Dog
Canaan Dog

Has a strong survival instinct!

A Canada Lynx
Canada Lynx

They have natural snowshoes

A Canadian Horse
Canadian Horse

Canadian horses are believed to generate more power per pound of body weight than any other horse breed in the world.

A Cane Corso
Cane Corso

Cane Corsos nearly became extinct in the mid 1900’s, but the breed was revived by a group of Italians. Even so, they still didn’t become known in many other parts of the world until after 1988.

A Cape Lion
Cape Lion

Despite its large, muscular body, the Cape lion actually rests more than 20 hours a day

A Capybara
Capybara

Excellent at both diving and swimming

A Caracal
Caracal

Has 20 different muscles in it's ears!

A Caribou
Caribou

Males and females grow antlers

A Carolina Dog
Carolina Dog

Wild dog breed discovered in the 1970s!

A Cashmere Goat
Cashmere Goat

Cashmere goat are named after Kashmir regions of India and Pakistan

A Cat
Cat

First domesticated by the Ancient Egyptians!

A Catahoula Leopard
Catahoula Leopard

The state of Louisiana's only native dog breed

A Catalan Sheepdog
Catalan Sheepdog

This breed is called the Gos d’Atura Catala in native Catalan and Pastor Catalan in Spanish, both of which roughly translate to mean Catalan Sheepdog

A Cava Tzu
Cava Tzu

Females are more territorial than males, but you can train this behavior out of them.

A Cavador
Cavador

The Cavador is a good service dog.

A Cavalier King Charles Spaniel
Cavalier King Charles Spaniel

Highly playful and affectionate!

A Cavapoo
Cavapoo

The temperament of a Cavapoo allows this breed to make an excellent family dog as well as a great therapy dog.

A Cesky Fousek
Cesky Fousek

An affectionate hunting dog!

A Cesky Terrier
Cesky Terrier

This breed is also known as the Bohemian Terrier (Bohemia was an historical Medieval kingdom and a region of the modern Czech Republic)

A Chameleon
Chameleon

There are more than 160 different species!

A Chamois
Chamois

Natively found in the European mountains!

A Cheagle
Cheagle

Some Cheagles have an excellent sense of smell.

A Cheetah
Cheetah

The fastest land mammal in the world!

A Chesapeake Bay Retriever
Chesapeake Bay Retriever

Bright and happy disposition!

A Chihuahua
Chihuahua

Curious and devoted personality!

A Chimpanzee
Chimpanzee

Has 32 teeth including fang-like canines!

A Chinchilla
Chinchilla

Natively found in the Andes Mountain range!

A Chinese Crested Dog
Chinese Crested Dog

A hairless breed of dog!

A Chinese Shar-Pei
Chinese Shar-Pei

These dogs have a blue and black tongue.

A Chinook
Chinook

A calm and friendly breed!

A Chipmunk
Chipmunk

There are 25 different species!

A Chipoo
Chipoo

The Chipoo was first bred in the 1970s

A Chiweenie
Chiweenie

Chiweenies travel especially well.

A Chorkie
Chorkie

Chorkies are very fond of their owners and will love to sit in their laps for long amounts of time!

A Chow Chow
Chow Chow

Loyal and affectionate to it's family!

A Chow Shepherd
Chow Shepherd

The Chow Shepherd is also known as the Sheprachow.

A Clouded Leopard
Clouded Leopard

Has canines that can be two inches long!

A Clumber Spaniel
Clumber Spaniel

Has a thick, soft coat!

A Coati
Coati

Found in dense forests and wet jungles!

A Cockalier
Cockalier

The Cockalier has very strong hunting ancestry.

A Cockapoo
Cockapoo

Cockapoos became popular in the 1960s as a sweet, family dog.

A Collared Peccary
Collared Peccary

Form bands of up to 12 individuals!

A Collie
Collie

Gentle and devoted!

A Common Toad
Common Toad

Most active in wet weather!

A Corgidor
Corgidor

Corgidors are herding dogs that typically help out on cattle farms.

A Corgipoo
Corgipoo

These dogs are highly intelligent and are easy to train.

A Corkie
Corkie

One of the Corkie’s parent breeds, the Cocker Spaniel, was thought to have come over on the Mayflower.

A Corman Shepherd
Corman Shepherd

Corman Shepherds can be great watchdogs and are often very protective of their owners.

A Coton de Tulear
Coton de Tulear

The soft coat of the Coton de Tulear is the result of a singular genetic mutation early in the breed's development.

A Cotton-top Tamarin
Cotton-top Tamarin

Found in tropical forest edges!

A Cougar
Cougar

Largest feline in North America

A Cow
Cow

There are nearly 1.5 million worldwide!

A Coyote
Coyote

Also known as the Prairie Wolf!

A Crab-Eating Macaque
Crab-Eating Macaque

Found throughout the South-East Asian jungles!

A Crabeater Seal
Crabeater Seal

The crabeater seal doesn’t actually eat crab at all, but instead krill

A Cross Fox
Cross Fox

The cross fox’s tail is bushier than the tail of the average red fox

A Cross River Gorilla
Cross River Gorilla

Less than 300 remaining!

A Curly Coated Retriever
Curly Coated Retriever

A lively and fun-loving breed!

A Cuscus
Cuscus

Has a long, strong prehensile tail!

A Czechoslovakian Wolfdog
Czechoslovakian Wolfdog

This breed is also known as the Czechoslovakian Vlcak (the name for the German Shepherd).

A Dachsador
Dachsador

This hybrid dog is also known as a Doxador or a Weinerdor.

A Dachshund
Dachshund

Fun and playful breed of small dog!

A Dalmadoodle
Dalmadoodle

Dalmatians were originally bred to run alongside carriages, and their dalmadoodle descendents have the same long legs and high energy.

A Dalmador
Dalmador

Dalmador breeding skyrocketed after the 16 release of the live-action 101 Dalmatians movie.

A Dalmatian
Dalmatian

Have an energetic and playful nature!

A Dapple Dachshund
Dapple Dachshund

A Dapple Dachshund’s dappling pattern may be just one spot, or it may be numerous spots and splashes on their coat.

A Darwin’s fox
Darwin’s fox

It’s not a “true fox.”

A Deer
Deer

There are around 40 different species!

A Deer Head Chihuahua
Deer Head Chihuahua

The Chihuahua is the smallest dog breed in the world.

A Deutsche Bracke
Deutsche Bracke

Has long drop ears and a long narrow tail!

A Dhole
Dhole

Only 2,000 left in the wild!

A Dik-Dik
Dik-Dik

A dik-dik is named after a sound it makes when it is frightened

A Dingo
Dingo

Natively found on the Australian continent!

A Doberman Pinscher
Doberman Pinscher

A gentle, loyal and loving breed!

A Dog
Dog

First domesticated in South-East Asia!

A Dogo Argentino
Dogo Argentino

Loyal and affectionate to their family!

A Dogue De Bordeaux
Dogue De Bordeaux

Extremely loyal and devoted to it's master!

A Dolphin
Dolphin

Can reach speeds of up to 25 mph!

A Donkey
Donkey

First domesticated 5,000 years ago!

A Dorgi
Dorgi

The Dorgi is one of the more popular mixed breed dogs.

A Dorkie
Dorkie

Dorkies are so laid-back they sometimes need extra incentive to exercise each day.

A Dormouse
Dormouse

Found in Europe, Africa and Asia!

A Double Doodle
Double Doodle

Exact origin unknown.

A Douc
Douc

When these monkeys want to mate, they wiggle their eyebrows.

A Doxiepoo
Doxiepoo

Doxiepoos are an unpredictable breed that can come in a variety of appearances and sizes.

A Doxle
Doxle

Doxles have long floppy ears

A Drever
Drever

Uncommon outside of Europe!

A Dugong
Dugong

Closely related to the Manatee!

A Dunker
Dunker

A friendly and relaxed dog!

A Dusky Dolphin
Dusky Dolphin

Communicates using whistles, squeaks and clicks!

A Eastern Gorilla
Eastern Gorilla

The largest primate in the world!

A Eastern Lowland Gorilla
Eastern Lowland Gorilla

Less than 5,000 in the wild!

A Echidna
Echidna

Also known as the Spiny Anteater!

A Egyptian Mau
Egyptian Mau

An ancient breed of domestic cat!

A Elephant
Elephant

Spends around 22 hours a day eating!

A Elephant Seal
Elephant Seal

The largest species of seal in the world!

A Elephant Shrew
Elephant Shrew

Found exclusively on the African continent!

A Elk
Elk

Adult males can jump eight feet vertically

A Emperor Tamarin
Emperor Tamarin

Has an elegant white moustache!

A English Cocker Spaniel
English Cocker Spaniel

Intelligent yet stubborn by nature!

A English Cream Golden Retriever
English Cream Golden Retriever

Although their coats can get incredibly light in color, golden retrievers never have purely white coats.

A English Foxhound
English Foxhound

English Foxhounds were bred to work and live in a pack. Because of this, this breed is happiest when they are around other dogs.

A English Setter
English Setter

English Setters were first bred between 400 and 500 years ago.

A English Shepherd
English Shepherd

Highly intelligent and independent!

A English Springer Spaniel
English Springer Spaniel

Friendly and eager to please!

A Entlebucher Mountain Dog
Entlebucher Mountain Dog

Native to parts of the Swiss Alps!

A Epagneul Pont Audemer
Epagneul Pont Audemer

Hard-working, gentle and affectionate!

A Ermine
Ermine

A very bold and ferocious predator!

A Eskimo Dog
Eskimo Dog

Takes pure delight in cold weather!

A Eskipoo
Eskipoo

Eskipoos are called pookimos by the American Canine Hybrid Club, Designer Dogs Kennel Club, and Designer Breed Registry.

A Estrela Mountain Dog
Estrela Mountain Dog

Very protective and stubborn!

A Fallow deer
Fallow deer

The fallow deer has more variation in its coat colors than most other deer.

A False Killer Whale
False Killer Whale

The false killer whale looks like a cross between a dolphin and orca!

A Feist
Feist

The word feisty derived from this type of dog.

A Fennec Fox
Fennec Fox

Found in the African Sahara Desert!

A Ferret
Ferret

Ferrets can be trained to do tricks like dogs!

A Field Spaniel
Field Spaniel

A sociable and adaptable breed!

A Fila Brasileiro
Fila Brasileiro

The breed has a unique, cat-like gait, while females have a finer gait than males.

A Fin Whale
Fin Whale

Found throughout ocean waters worldwide!

A Finnish Spitz
Finnish Spitz

Likes to bark a lot!

A Fisher Cat
Fisher Cat

The fisher is an agile climber and makes its home in tree hollows

A Fishing Cat
Fishing Cat

Scoops fish out of the water using it's paw!

A Flat-Coated Retriever
Flat-Coated Retriever

A game retrieving gun-dog!

A Florida Panther
Florida Panther

Florida panthers can leap more than 4.5 meters (15 feet) in the air.

A Flying Lemur
Flying Lemur

The second pair of upper incisors in a flying lemur has a double root, which is unique for mammals.

A Flying Squirrel
Flying Squirrel

Can glide up to 90 meters!

A Formosan Mountain Dog
Formosan Mountain Dog

Formosa is the Portuguese term for the island of Taiwan

A Fossa
Fossa

Most closely related to the Mongoose!

A Fox
Fox

There are 12 different species in the world!

A Fox Terrier
Fox Terrier

First bred in the mid-19th century!

A French Bulldog
French Bulldog

French bulldogs are known to be very sensitive, harboring emotions that they love to express

A Frenchton
Frenchton

Loyal small dogs, the Frenchton will keep you warm at night with loving cuddles, but also awake with their funny loud snoring!

A Frengle
Frengle

Frengles have a haunting howl very similar to their Beagle parent.

A Fruit Bat
Fruit Bat

Among the largest bats in the world

A Fur Seal
Fur Seal

Found only in the Northern Hemisphere!

A Genet
Genet

The Genet has retractable claws like a cat

A Geoffroys Tamarin
Geoffroys Tamarin

Has distinctive V shape on head!

A Gerberian Shepsky
Gerberian Shepsky

German Shepherds, Siberian Huskies, and Gerberian Shepskies are all popular choices for police dogs.

A Gerbil
Gerbil

Originally known as the Desert Rat!

A German Pinscher
German Pinscher

Highly intelligent and fast learners!

A German Shepherd Guide
German Shepherd Guide

Highly active and fearless dogs!

A German Sheppit
German Sheppit

The German Sheppit is well-suited for guarding and police work.

A German Sheprador
German Sheprador

There is a chance that the German Sheprador may inherit a love for water from its parent.

A German Shorthaired Pointer
German Shorthaired Pointer

German Shorthaired Pointers are used by the Air Force, TSA, and other organizations to sniff out explosives.

A German Spitz
German Spitz

There are five different sub-breeds of the German Spitz.

A Giant Armadillo
Giant Armadillo

Armadillos have a smell that’s described as strong, sweet and acrid.

A Giant Panda Bear
Giant Panda Bear

Bamboo makes up 99 per cent of their diet!

A Giant Schnauzer
Giant Schnauzer

Large, powerful and dominant!

A Giant Schnoodle
Giant Schnoodle

Both parents of the Giant Schnoodle are hypoallergenic, making this one of the Doodle breeds that's safest for dander-sensitive owners.

A Gibbon
Gibbon

Found in dense jungles and tropical forests!

A Giraffe
Giraffe

Long, black tongue can grow to 18 inches long!

A Glechon
Glechon

Glechons are talented in the area of search and rescue, as their sense of smell makes them great at tracking.

A Glen Of Imaal Terrier
Glen Of Imaal Terrier

This dog is also named the Wicklow Terrier after the county of its origin.

A Goat
Goat

Most closely related to the Sheep!

A Goberian
Goberian

These dogs are great around children and are very playful around them.

A Goldador
Goldador

Goldadors were not intentionally bred until the early 2000s!

A Golden Dox
Golden Dox

Golden doxes don't have to be tiny. This breed looks different depending on whether the mix includes a regular dachshund or the mini version of the species.

A Golden Lion Tamarin
Golden Lion Tamarin

Native to the eastern rainforests of Brazil!

A Golden Newfie
Golden Newfie

These dogs love to swim and instinctively know how to swim.

A Golden Pyrenees
Golden Pyrenees

Golden Pyrenees make great therapy dogs due to their intelligence and gentle nature.

A Golden Retriever
Golden Retriever

Trusting, kind and gentle!

A Golden Saint
Golden Saint

Golden saints come in all kinds of colors. You can find them in tan, chocolate, yellow, brindled, spotted, and almost any other pattern you can think of.

A Golden Shepherd
Golden Shepherd

The Golden Shepherds were first recognized by the International Designer Canine Registry in 2009.

A Golden-Crowned Flying Fox
Golden-Crowned Flying Fox

They eat figs almost exclusively

A Goldendoodle
Goldendoodle

Due to their breeding, no two Goldendoodles are alike.

A Gopher
Gopher

They dig large networks of tunnels!

A Gordon Setter
Gordon Setter

It's the largest and heaviest breed of setter.

A Gorilla
Gorilla

The biggest of the world's primates!

A Grasshopper Mouse
Grasshopper Mouse

The grasshopper mice attack predators using the poison of their venom.

A Gray Fox
Gray Fox

The gray fox has retractable claws and a rotating wrist that allow it to climb trees with some proficiency

A Great Dane
Great Dane

Large and imposing in appearance!

A Great Danoodle
Great Danoodle

Both Great Danes and Poodles are in the top 15 most popular AKC breeds - which makes Great Danoodles a shoo-in for popularity.

A Greater Swiss Mountain Dog
Greater Swiss Mountain Dog

Protective and gentle by nature!

A Greenland Dog
Greenland Dog

Strong and speedy breed of dog!

A Grey Mouse Lemur
Grey Mouse Lemur

The largest species of mouse lemur!

A Grey Seal
Grey Seal

One of the rarest species of seal on Earth

A Greyhound
Greyhound

Extremely fast and athletic!

A Griffonshire
Griffonshire

Griffonshires are so little they are easily mistaken for puppies throughout their lives.

A Grizzly Bear
Grizzly Bear

Less than 10% make it into adulthood

A Groenendael
Groenendael

Although developed as a herding dog, the breed makes an excellent guard and working dog and is used by police forces and the military.

A Guinea Pig
Guinea Pig

Natively found in the Andes Mountain range!

A Hamster
Hamster

Able to run as quickly backwards as forwards!

A Harbor Seal
Harbor Seal

Harbor seals can dive as deep as 1400 feet

A Hare
Hare

Can reach speeds of over 40 mph!

A Harp Seal
Harp Seal

The harp seal can migrate up to 3,000 miles every year

A Harrier
Harrier

Cheerful, tolerant and sweet-tempered!

A Havanese
Havanese

These are the only dogs that are native to Cuba

A Havapoo
Havapoo

The exact appearance of a Havapoo can vary based on whether the genes of its Poodle or Havanese parent are more dominant.

A Havashire
Havashire

Both of the Havashire’s parent breeds were very popular among the upper classes.

A Hawaiian Monk Seal
Hawaiian Monk Seal

Hawaiian name is "Ilio-holo-i-ka-uaua," meaning "the dog which runs in rough waters.

A Hedgehog
Hedgehog

Thought to be one of the oldest mammals on Earth!

A Highland Cattle
Highland Cattle

Natively found in the Scottish Highlands!

A Himalayan
Himalayan

Also known as the Colourpoint Persian!

A Hippopotamus
Hippopotamus

Has pink anti-bacterial sweat!

A Hoary Bat
Hoary Bat

The hoary bat travels hundreds of miles south for the winter

A Hokkaido
Hokkaido

Known for its bravery and ability to withstand the cold.

A Honduran White Bat
Honduran White Bat

The bat only eats figs.

A Honey Badger
Honey Badger

One of earth's bravest creatures!

A Hooded Seal
Hooded Seal

Hooded seal pups are called bluebacks because the color of the fur on their back is blue-gray. This pretty color made people want to make fur coats out of them and made them a target for hunters.

A Horgi
Horgi

Horgis have a silly side and love to be the center of attention.

A Horse
Horse

Has evolved over 50 million years!

A Howler Monkey
Howler Monkey

Spends 80% of it's time resting!

A Human
Human

Thought to have orignated 200,000 years ago!

A Huntaway
Huntaway

Huntaways have a strong instinct for herding.

A Huskador
Huskador

Huskadors are gaining in popularity as service dogs.

A Huskita
Huskita

Huskitas prefer a consistent daily routine with lots of activity.

A Husky Jack
Husky Jack

Due to the mix of genes, a Husky Jack’s coat may be a variety of colors including black, gray, white, red, sable, or mixed colors.

A Huskydoodle
Huskydoodle

Huskydoodles are known for their jumping abilities!

A Hyena
Hyena

There are four different species!

A Ibex
Ibex

Can jump over 6 feet straight up from a standstill

A Ibizan Hound
Ibizan Hound

Intelligent, active and engaging by nature!

A Icelandic Sheepdog
Icelandic Sheepdog

The Icelandic Sheepdog is the only dog breed entirely native to Iceland.

A Impala
Impala

Able to jump over 10 feet high

A Indian Elephant
Indian Elephant

Found throughout south-east Asia!

A Indian Giant Squirrel
Indian Giant Squirrel

Indian giant squirrels use their large tail to help them balance.

A Indian Palm Squirrel
Indian Palm Squirrel

Natively found in parts of India and Sri Lanka!

A Indian Rhinoceros
Indian Rhinoceros

Also known as the one-horned rhino!

A Indochinese Tiger
Indochinese Tiger

Now thought to be extinct in China!

A Indri
Indri

The largest species of Lemur!

A Irish Doodle
Irish Doodle

Irish Doodles can be very active dogs, but they also love just hanging out with their family members in the house.

A Irish Setter
Irish Setter

Can live for up to 16 years!

A Irish Terrier
Irish Terrier

An average 300 Irish Terrier puppies are born each year in the United States.

A Irish Water Spaniel
Irish Water Spaniel

The only known canine with a purple hue.

A Irish WolfHound
Irish WolfHound

Sweet-tempered, patient and thoughtful!

A Italian Greyhound
Italian Greyhound

The Italian Greyhound is a miniature dog with a big motor and personality!

A Jack Russell
Jack Russell

Intelligent, athletic and fearless!

A Jackabee
Jackabee

The Jackabee has an excellent sense of smell.

A Jackal
Jackal

Can maintain speeds of 16 km/h!

A Jaguar
Jaguar

The largest feline on the American continent!

A Jaguarundi Cat
Jaguarundi Cat

These cats are expert swimmers.

A Japanese Chin
Japanese Chin

Alert, intelligent and independent!

A Japanese Macaque
Japanese Macaque

Has cheek pouches for storing food!

A Japanese Spitz
Japanese Spitz

The Japanese Spitz is sometimes referred to as a cloud dog.

A Japanese Squirrel
Japanese Squirrel

The Japanese squirrel hoards its food for the winter

A Japanese Terrier
Japanese Terrier

Japanese Terriers are also called Nippon Terriers

A Javan Rhinoceros
Javan Rhinoceros

Only has a 25cm long horn!

A Javanese
Javanese

Features that closely resemble a Siamese cat!

A Jerboa
Jerboa

Tiny rodent with a kangaroo-like jump!

A Kai Ken
Kai Ken

Kai Ken are a very rare breed of dog from Japan, though pure breeds are even harder to come by.

A Kangal
Kangal

Can run up to 35 miles per hour (56km).

A Kangaroo
Kangaroo

Females have a deep pouch on their front!

A Kangaroo Rat
Kangaroo Rat

Merriam’s kangaroo rats literally never have to drink water

A Kerry Blue Terrier
Kerry Blue Terrier

They are born black, and turn gray-blue as they age.

A Key Deer
Key Deer

Bucks grow new antlers every year.

A Kiko Goat
Kiko Goat

Kiko goats breed year-round, and they are not good at defending themselves.

A Killer Whale
Killer Whale

Typically consumes over 200 kg of food a day!

A Kinder Goat
Kinder Goat

Best jumper of all goats

A King Shepherd
King Shepherd

This hybrid breed is the largest among the shepherd class.

A Kinkajou
Kinkajou

The kinkajou is a nimble forest-dwelling mammal of Central and South America.

A Kishu
Kishu

Once raised to hunt dangerous game like boar, today's kishu ken are more likely to be used as guard dogs.

A Koala
Koala

Spends up to 80% of the time sleeping or resting!

A Kodkod
Kodkod

The kodkod is among the smallest species of cats in the entire world

A Kooikerhondje
Kooikerhondje

If Kooikerhondjes look familiar, it’s because old Dutch masters like Rembrandt and Jan Steen liked to paint them.

A Koolie
Koolie

The name "koolie" comes from the German mispronunciation of "collie."

A Kudu
Kudu

Lives in herds of up to 24 individuals!

A Kuvasz
Kuvasz

Ownership of this dog was once restricted to the Hungarian nobility

A Labahoula
Labahoula

The AKC does not recognize this breed or the parent breed Catahoula

A Labmaraner
Labmaraner

Loves to participate in activities.

A Labradane
Labradane

Labradanes can come with both sold-color coats and the more exciting patterns that you typically see on Great Danes.

A Labradoodle
Labradoodle

Friendly and energetic mix-breed!

A Labrador Retriever
Labrador Retriever

Well-balanced, friendly and versatile!

A Labraheeler
Labraheeler

These dogs have medium-sized pendant ears.

A Lakeland Terrier
Lakeland Terrier

These dogs were once used by farmers to keep foxes away from herds of sheep.

A LaMancha Goat
LaMancha Goat

Have tiny ears named “gophers” or “elves”

A Lancashire Heeler
Lancashire Heeler

The name “heeler” comes from the fact that it nips at the heels of cattle to herd them.

A Lapponian Herder
Lapponian Herder

This breed is also known as the Lapp Reindeer Dog and the Lapsk Vallhund.

A Lemming
Lemming

Does not hibernate during the bitter Arctic winter!

A Lemur
Lemur

Natively found on the island of Madagascar!

A Leonberger
Leonberger

This dog has been used for pulling carts full of goods.

A Leopard
Leopard

Spends much of the time high in the trees!

A Leopard Cat
Leopard Cat

There are 11 different species!

A Leopard Seal
Leopard Seal

The world's most aggressive seal species!

A Lhasa Apso
Lhasa Apso

The Lhasa Apso was often given as a gift in Tibetan culture

A Lhasapoo
Lhasapoo

A Lhasapoo’s coat can be curly like a poodle’s or long and silky like a Lhasa Apso’s.

A Liger
Liger

The offspring of a lion and tiger parents!

A Lion
Lion

Lives in small groups called prides!

A Little Brown Bat
Little Brown Bat

The little brown bat uses echolocation to quickly navigate around its environment

A Llama
Llama

Natively found in the Andes Mountain range!

A Long-Haired Rottweiler
Long-Haired Rottweiler

Rottweilers have a tendency to snore.

A Lowchen
Lowchen

This breed is also known as the "Little Lion Dog" for their bravery and manes.

A Lynx
Lynx

Live in dens in rocks and under ledges!

A Mackenzie Wolf
Mackenzie Wolf

Will travel up to 70 miles in a single day.

A Maine Coon
Maine Coon

Folklore says it's half cat, half raccoon!

A Malayan Civet
Malayan Civet

Also known as the Oriental Civet!

A Malayan Tiger
Malayan Tiger

Found in less-dense jungles!

A Malteagle
Malteagle

Malteagles are one of the smallest beagle hybrids and love to follow their owners everywhere.

A Maltese
Maltese

Originally bred in Europe!

A Maltese Shih Tzu
Maltese Shih Tzu

Both parent breeds, the Maltese and Shih Tzu, once entertained royalty

A Maltipoo
Maltipoo

Maltipoos may have one of three different coat types depending on the specific genes they inherit from their parents. These include silky, curly, or wavy.

A Manatee
Manatee

Also known as the Sea Cow!

A Manchester Terrier
Manchester Terrier

Fences are no match for Manchester terriers. They’re great escape artists!

A Mandrill
Mandrill

Distinctively coloured noses and rumps!

A Maned Wolf
Maned Wolf

Despite its name, the Maned Wolf is not actually a wolf.

A Marble Fox
Marble Fox

The marble fox is not a naturally occurring variant; it was created through artificial selection.

A Markhor
Markhor

Less than 2,500 left in the wild!

A Marmot
Marmot

A marmot spends 80% of its life below ground

A Masked Palm Civet
Masked Palm Civet

Found throughout Asia, India and China!

A Mastador
Mastador

The Mastador gets its enormous size from its Mastiff parent

A Mastiff
Mastiff

Courageous, calm and affectionate!

A Meagle
Meagle

The Meagle has an incredible sense of smell.

A Meerkat
Meerkat

One will stand on guard to watch for predators!

A Mexican Free-Tailed Bat
Mexican Free-Tailed Bat

Some colonies have millions of bats

A Miki
Miki

They can be trained to use the litter box like a cat!

A Mini Labradoodle
Mini Labradoodle

The first mini labradoodle was bred in the early 1990s - almost immediately after standard labradoodles became popular.

A Miniature Bull Terrier
Miniature Bull Terrier

This dog has a very happy-go-lucky temperament.

A Miniature Pinscher
Miniature Pinscher

Stable rodents were kept in check by using it as a barnyard ratter.

A Mink
Mink

The mink can swim up to 100 feet underwater.

A Minke Whale
Minke Whale

There are two recognised species!

A Mole
Mole

Primarily hunts and feeds on Earthworms!

A Mongoose
Mongoose

Range in size from just 1 to 3 foot!

A Mongrel
Mongrel

Has characteristics of two or more breeds!

A Monkey
Monkey

There are around 260 known species!

A Moorhen
Moorhen

Feeds on aquatic insects and water-spiders!

A Moose
Moose

Renews it's enormous antlers every year!

A Morkie
Morkie

A Morkie puppy can weigh as little as 4 ounces.

A Moscow Watchdog
Moscow Watchdog

This Molosser-type dog is the Russian cousin of St. Bernard.

A Mountain Feist
Mountain Feist

Mountain Feists were bred in the southern United States as a dog that could help with hunting small game.

A Mountain Gorilla
Mountain Gorilla

Isolated populations found in the mountains!

A Mountain Lion
Mountain Lion

Has no real natural predators!

A Mouse
Mouse

Found on every continent on Earth!

A Mudi
Mudi

Mudi dogs have a reputation for being able to control a herd of 500 sheep.

A Mule
Mule

The offspring of a horse and donkey parents!

A Muntjac
Muntjac

The muntjac is the smallest type of deer in the world

A Muskox
Muskox

Muskox have several physical characteristics that allow them to survive in the Arctic climate.

A Muskrat
Muskrat

The muskrat can stay underwater up to 17 minutes at a time

A Naked Mole Rat
Naked Mole Rat

Naked mole rats don’t get cancer

A Narwhal
Narwhal

Lives and hunts in the frigid Arctic!

A Neanderthal
Neanderthal

Roamed Asia and Europe for around 100,000 years!

A Neapolitan Mastiff
Neapolitan Mastiff

Fearless and extremely protective of it's home!

A Newfoundland
Newfoundland

Introduced by Vikings more than 1,000 years ago!

A Newfypoo
Newfypoo

Newfypoos have a thick oily coat that can be hard to groom.

A Nigerian Goat
Nigerian Goat

Produces a lot of milk for its small size

A Norfolk Terrier
Norfolk Terrier

Fearless but not aggressive!

A North American Black Bear
North American Black Bear

Short claws make them good tree climbers!

A Northern Fur Seal
Northern Fur Seal

Dense underfur means they don’t need blubber to stay warm

A Norwegian Buhund
Norwegian Buhund

The Norwegian Buhund once worked on Norse homesteads

A Norwegian Elkhound
Norwegian Elkhound

This breed traveled with the Vikings!

A Norwegian Forest
Norwegian Forest

Has a long, thick double coat of fur!

A Norwegian Lundehund
Norwegian Lundehund

This breed is also called the Norsk Lundehund and the Norwegian Puffin Dog

A Norwich Terrier
Norwich Terrier

Though Norwich terriers are small, they have a reputation for being feisty.

A Nova Scotia Duck Tolling Retriever
Nova Scotia Duck Tolling Retriever

The Toller is one of only two breeds that hunters use as decoys while hunting.

A Nubian Goat
Nubian Goat

The Nubian is a relatively large, proud, and graceful dairy goat that traces its ancestry to India and Egypt.

A Numbat
Numbat

There are less than 1,000 left in the wild!

A Ocelot
Ocelot

Also known as the Painted Leopard!

A Okapi
Okapi

Eats more than 100 different types of plant!

A Old English Sheepdog
Old English Sheepdog

Intelligent, sociable and playful!

A Opossum
Opossum

Thought to be immune to certain snake venom!

A Orang-utan
Orang-utan

Shares 97% of its DNA with humans!

A Otter
Otter

There are 13 different species worldwide

A Otterhound
Otterhound

Otterhounds have webbed feet making them great swimmers!

A Pademelon
Pademelon

Inhabits the jungles of the far east!

A Pangolin
Pangolin

Bad eyesight, but great sense of smell

A Panther
Panther

Prefers to hunt at night than during the day!

A Papillon
Papillon

Originally called the Toy Spaniel, the Papillon is one of the oldest breeds in the toy group. They can be found in artwork dating back to the 16th century.

A Parson Russell Terrier
Parson Russell Terrier

The root stock of the breed was a dog named Trump

A Patas Monkey
Patas Monkey

The fastest species of primate in the world!

A Patterdale Terrier
Patterdale Terrier

A Patterdale Terrier’s small body structure allows it to squeeze into fox burrows.

A Peagle
Peagle

Peagles enjoy being the center of attention. This can make them a very entertaining breed to own.

A Peekapoo
Peekapoo

Peekapoos were first bred in the 1950’s, making them one of the first designer dog breeds.

A Pekingese
Pekingese

Thought to be over 2,000 years old!

A Pembroke Welsh Corgi
Pembroke Welsh Corgi

The Pembroke Welsh Corgi is a favorite breed of Queen Elizabeth II

A Pere Davids Deer
Pere Davids Deer

Has webbing between its toes, aiding in swimming!

A Perro De Presa Canario
Perro De Presa Canario

The breed has feet like a cat, with rounded toes that are not too close together. His unique feet give him a distinctive, long, elastic stride.

A Persian
Persian

Thought to have originated in the Middle East!

A Peruvian Inca Orchid
Peruvian Inca Orchid

The Peruvian Inca Orchid is the national dog of Peru

A Petit Basset Griffon Vendéen
Petit Basset Griffon Vendéen

A small dog with a big, lively personality.

A Petite Goldendoodle
Petite Goldendoodle

Like their purebred parents, these dogs love the water!

A Pheasant
Pheasant

Females lay between 8 and 12 eggs per clutch!

A Pied Tamarin
Pied Tamarin

Only found in one area of Brazil!

A Pig
Pig

Thought to have been domesticated in 9,000 BC!

A Pika
Pika

Found in mountainous regions and rocky areas

A Pine Marten
Pine Marten

A pine marten can jump from tree to tree similar to a squirrel.

A Pink Fairy Armadillo
Pink Fairy Armadillo

The smallest known species of Armadillo

A Pitador
Pitador

There are several names for this breed, including the Labrabull or the Pitador Retriever.

A Pitsky
Pitsky

Most Pitskies will do best as the only pet in a home. They may become aggressive with other dogs (especially two unneutered male dogs) and could try to chase or catch small pets due to their higher prey drive.

A Platypus
Platypus

One of the only mammals to lay eggs!

A Pocket Beagle
Pocket Beagle

Queen Elizabeth I of England once owned several Pocket Beagles

A Pocket Pitbull
Pocket Pitbull

The smaller size of the Pocket Pitbull made it better suited for fleeing game as compared to larger Foxhounds.

A Pointer
Pointer

An independent, loyal and high energy breed!

A Polar Bear
Polar Bear

Could be extinct within the next 30 years!

A Polish Lowland Sheepdog
Polish Lowland Sheepdog

Despite having shaggy hair that covers its eyes, this dog is known for its watchful gaze when guarding a herd.

A Pomapoo
Pomapoo

Pomapoos like companionship and do not like being alone. They may do better in a home with other dogs.

A Pomchi
Pomchi

A deliberate cross like the Pomchi is commonly referred to as a designer dog

A Pomeagle
Pomeagle

Pomeagles are sweet and fun dogs that like to spend time exploring their environment.

A Pomeranian
Pomeranian

The ancestors of the Pomeranian were sled dogs.

A Pomsky
Pomsky

The howls and barks of a Pomsky can sound like singing

A Poochon
Poochon

The Poochon was first bred in Australia.

A Poodle
Poodle

Intelligent, alert and active!

A Poogle
Poogle

The Poogle is one of 40 different doodle dog breeds (poodle mixes).

A Porcupine
Porcupine

There are 30 different species worldwide!

A Porpoise
Porpoise

Surprisingly, not a dolphin!

A Possum
Possum

There are 69 species on the Australian continent!

A Potoroo
Potoroo

They can carry items with their tail.

A Prairie Dog
Prairie Dog

Prairie dog “towns” can consists of hundreds of individuals

A Proboscis Monkey
Proboscis Monkey

Natively found on the island of Borneo!

A Pronghorn
Pronghorn

While pronghorns are the fastest runner of any Western Hemisphere land animal, they are not good jumpers.

A Pudelpointer
Pudelpointer

Like their poodle parent, Pudelpointers love to swim in pools!

A Pug
Pug

Fun and sociable, yet stubborn!

A Pugapoo
Pugapoo

The pugapoo is the fusion of a pug and a poodle.

A Puggle
Puggle

These dogs are active and are often patient around children.

A Pugshire
Pugshire

With their incredible desire to show affection, Pugshire make great lap dogs.

A Puma
Puma

Has longer back legs than front legs!

A Pumi
Pumi

Pumik developed their loud bark to communicate with shepherds at long distances.

A Pygmy Hippopotamus
Pygmy Hippopotamus

Spends more time on land than in water!

A Pygora Goat
Pygora Goat

The Pygora goat is exclusively bred for their fleece, and they produce three different kinds.

A Pyrador
Pyrador

Most popular as a companion pet

A Pyredoodle
Pyredoodle

Pyredoodles can have a thick double coat or a thinner single coat.

A Quagga
Quagga

The quagga is a subspecies of plains zebra.

A Quokka
Quokka

Makes runways through the long grasses!

A Quoll
Quoll

Found across Australia and Papua New Guinea!

A Rabbit
Rabbit

There are more than 50 different species!

A Raccoon
Raccoon

Known to wash their food before eating it!

A Raccoon Dog
Raccoon Dog

The only hibernating canine!

A Ragdoll
Ragdoll

One of the larger breeds of domestic cat!

A Raggle
Raggle

Raggles are known for their energy and curiosity.

A Rat
Rat

Omnivores that eat anything!

A Rat Terrier
Rat Terrier

Rat terriers were popular with farmers before 1930 because of their ability to kill rodents.

A Red Fox
Red Fox

The red fox actually has many different variations of fur, including silver and brown.

A Red Panda
Red Panda

There are less than 3,000 left in the wild!

A Red Squirrel
Red Squirrel

The red squirrel has one of the most impressive memories in the entire animal kingdom

A Red Wolf
Red Wolf

Only 100 in the wild!

A Red-handed Tamarin
Red-handed Tamarin

Red hair on hands on feet!

A Redbone Coonhound
Redbone Coonhound

Originally bred to track raccoons.

A Reindeer
Reindeer

Also known as the Caribou

A Rhinoceros
Rhinoceros

It's horns are made from keratin!

A Rock Hyrax
Rock Hyrax

Actually related to Elephants and Manatees!

A Rodents
Rodents

The capybara, the world’s largest rodent, likes to be in and around bodies of water. Because of this, the Catholic Church in South America decided that it was a fish, and people were allowed to eat it during Lent and First Fridays.

A Roe Deer
Roe Deer

The roe is one of the most popular game animals in Europe

A Rottsky
Rottsky

Many Rottskies have one brown eye and one blue eye.

A Rottweiler
Rottweiler

Strong, loyal and self-assured!

A Russell Terrier
Russell Terrier

The Russell Terrier was bred to be a good fox hunter with a keen sense of smell

A Russian Bear Dog
Russian Bear Dog

The bite of a Russian Bear Dog is stronger than a lion’s bite.

A Russian Blue
Russian Blue

First brought to the UK in the 1800s!

A Saanen Goat
Saanen Goat

The saanen goat is the most popular milk breed.

A Saber-Toothed Tiger
Saber-Toothed Tiger

Canines up to 7 inches long!

A Sable
Sable

Their fur has been considered a luxury item since the Middle Ages

A Sable Black German Shepherd
Sable Black German Shepherd

According to the American Kennel Club, the German Shepherd is the second most popular breed in the United States

A Saiga
Saiga

Large noses help filter out dust

A Saint Bernard
Saint Bernard

Gentle, loyal and friendly!

A Saint Shepherd
Saint Shepherd

These dogs have an eager-to-please attitude, making them sweet and happy pets.

A Saluki
Saluki

The Saluki is one of the fastest dog breeds in the world.

A Saola
Saola

Only known to science since 1992!

A Savanna Goat
Savanna Goat

Savanna goats have only existed since 1957.

A Schipperke
Schipperke

Schipperkes were used to hunt and kill rodents on Belgian ships.

A Schneagle
Schneagle

This hybrid dog is a great companion and doesn’t do well being left alone but is suitable for apartments or houses with backyards!

A Scimitar-horned Oryx
Scimitar-horned Oryx

Believed to be the inspiration for unicorn myths!

A Scottish Terrier
Scottish Terrier

This breed is nicknamed the “Diehard” because of its iron will and steely determination.

A Sea Lion
Sea Lion

It's flippers allow it to walk on the land

A Sea Otter
Sea Otter

Eats over 40 different marine species!

A Seal
Seal

There are 30 different species worldwide!

A Sealyham Terrier
Sealyham Terrier

Very endangered breed that is scion of several breeds that include one that is already extinct

A Sei Whale
Sei Whale

This whale is one of the fastest of the cetaceans

A Serval
Serval

Can leap more than 1 meter into the air!

A Sheep
Sheep

Around 35 million in the English countryside!

A Sheepadoodle
Sheepadoodle

Sheepadoodles were first bred as an experiment for use as a military dog in the Army in the 1960s, however they didn’t really gain popularity until 2007.

A Shepadoodle
Shepadoodle

Some police officers with allergies use Shepadoodles as their K-9 partner

A Shepkita
Shepkita

These dogs can sometimes be overly aggressive.

A Shepweiler
Shepweiler

The Shepweiler is an excellent guard dog.

A Shiba Inu
Shiba Inu

Shiba Inus are one of six native dog breeds from Japan.

A Shih Tzu
Shih Tzu

Can live for up to 15 years!

A Shollie
Shollie

Shollies are a fairly new type of crossbreed!

A Siamese
Siamese

Originated from temple cats in Thailand!

A Siberian
Siberian

An exceptionally agile jumper!

A Siberian Husky
Siberian Husky

Is adequately warm in sub-zero temperatures!

A Siberian Ibex
Siberian Ibex

There’s a population of Siberian ibex in New Mexico

A Siberian Retriever
Siberian Retriever

Many husky Labs have one blue eye and one brown eye.

A Siberian Tiger
Siberian Tiger

Also known as the Amur tiger!

A Siberpoo
Siberpoo

Although a lack of documentation makes it unclear, the first Siberpoo was probably bred in either the 1970s or 1980s.

A Silky Terrier
Silky Terrier

Silky terriers can be trained to participate in many events, including herding, agility, rally, tracking and fly ball.

A Silver Labrador
Silver Labrador

The Labrador is the most popular breed in the United States and most of these dogs have blue eyes at a young age, before they turn another color.

A Skunk
Skunk

Also known as the Polecat!

A Skye Terrier
Skye Terrier

Skye terriers are the oldest terrier breed, dating back at least 400 years.

A Sloth
Sloth

It's body temperature is between 30 - 34 degrees!

A Smooth Fox Terrier
Smooth Fox Terrier

These dogs are known for their fast digging abilities.

A Snorkie
Snorkie

Snorkies are known for their funny, attention-getting antics.

A Snow Leopard
Snow Leopard

Unlike other big cats, snow leopards don’t roar.

A Snowshoe
Snowshoe

Thought to have originated in the 1960s!

A Snowshoe Hare
Snowshoe Hare

An adult snowshoe hare can cover ten feet in a single jump.

A Somali
Somali

Active, intelligent and playful!

A South China Tiger
South China Tiger

There are less than 20 in the wild!

A Spanador
Spanador

The Spanador is a good swimmer.

A Spanish Goat
Spanish Goat

They have long, horizontal ears.

A Spanish Mastiff
Spanish Mastiff

Diego Velázquez’s famous 17th century painting of the Infanta and her dwarves includes a portrait of a Spanish Mastiff.

A Spectacled Bear
Spectacled Bear

Native to the Andes mountains of South America!

A Sperm Whale
Sperm Whale

Each tooth weighs 1kg!

A Spider Monkey
Spider Monkey

Found in the tropical jungles of South America!

A Spinone Italiano
Spinone Italiano

They're one of the oldest hunting breeds on Earth.

A Springbok
Springbok

The springbok has a large tuft of hair that emerges from a pouch on the back

A Squirrel
Squirrel

Small rodents found in woodlands worldwide!

A Squirrel Monkey
Squirrel Monkey

Lives in groups of up to 500 individuals!

A Sri Lankan Elephant
Sri Lankan Elephant

Now restricted to a few parks!

A Stabyhoun
Stabyhoun

It is a versatile, all-around working breed and pet.

A Staffordshire Bull Terrier
Staffordshire Bull Terrier

Known for their loyalty to their family!

A Standard Schnauzer
Standard Schnauzer

This dog’s facial hair makes it look like it has a beard.

A Star-nosed mole
Star-nosed mole

The star-nosed mole has the ability to sense both electrical fields and ground vibrations

A Steller’s Sea Cow
Steller’s Sea Cow

Hunted to extinction in 17 years!

A Stoat
Stoat

Average adults weigh about 200 grams!

A Striped Hyena
Striped Hyena

The striped hyenas usually mark their territories with the help of the scent gland secretions from their anal pouch.

A Sugar Glider
Sugar Glider

Can glide for over 100 feet before touching the ground

A Sumatran Elephant
Sumatran Elephant

Less than 2,000 left in the wild!

A Sumatran Orang-utan
Sumatran Orang-utan

Known to make mental maps of the forest!

A Sumatran Rhinoceros
Sumatran Rhinoceros

The smallest species of rhino!

A Sumatran Tiger
Sumatran Tiger

The smallest species of tiger!

A Sun Bear
Sun Bear

The smallest species of bear in the world!

A Syrian Hamster
Syrian Hamster

Can get used to and respond to human voice

A Taco Terrier
Taco Terrier

Taco terriers are known by a variety of names, including the Chitoxy Toy and the Chiwoxy.

A Takin
Takin

The takin can leap some 6 feet through the air

A Tapanuli Orang-utan
Tapanuli Orang-utan

Inhabits an isolated mountain range in northwestern Sumatra!

A Tapir
Tapir

Most closely related to horses and rhinos!

A Tarsier
Tarsier

Each eye weighs more than their whole brain!

A Tasmanian Devil
Tasmanian Devil

Exclusively found on the island of Tasmania!

A Tasmanian Tiger
Tasmanian Tiger

The Tasmanian tiger could open its mouth almost 90 degrees.

A Teddy Bear Hamster
Teddy Bear Hamster

The oldest recorded teddy bear hamster was six and a half.

A Teddy Roosevelt Terrier
Teddy Roosevelt Terrier

Often just called 'Teddies' by owners

A Tenterfield Terrier
Tenterfield Terrier

These terriers have quick minds and fast feet making them excellent for agility competitions.

A Terrier
Terrier

Terriers were once the greatest dogs in the world.

A Texas Heeler
Texas Heeler

Though they are loyal to their family, these dogs can be shy around strangers.

A Thai Ridgeback
Thai Ridgeback

In their native Thailand, Thai Ridgebacks were used to hunt cobras.

A Tibetan Fox
Tibetan Fox

Tibetan foxes are not territorial and will share a hunting ground with other mated pairs.

A Tibetan Mastiff
Tibetan Mastiff

Originally bred in the Himalayan mountains!

A Tibetan Spaniel
Tibetan Spaniel

Originally bred to be a companion dog in Tibetan Buddhist lamaseries.

A Tibetan Terrier
Tibetan Terrier

Tibetan terriers have round, flat, “snow shoe” feet that evolved to give them traction on snowy Himalayan paths

A Tiffany
Tiffany

Eye color intensifies with age!

A Tiger
Tiger

The largest feline in the world!

A Torkie
Torkie

The Torkie has a soft silky coat

A Toy Fox Terrier
Toy Fox Terrier

Hunters still use the toy fox to go into a fox's den and flush the animal out.

A Toy Poodle
Toy Poodle

The word poodle is derived from German, and it means to splash or puddle.

A Transylvanian Hound
Transylvanian Hound

The Transylvanian Hound is also known as the Erdelyi Kopo in Hungarian

A Tree Kangaroo
Tree Kangaroo

It’s the only macropod that lives in trees.

A Treeing Tennessee Brindle
Treeing Tennessee Brindle

Coarse baying cries during the hunt changes at the tree

A Treeing Walker Coonhound
Treeing Walker Coonhound

The breed has several distinctive vocalizations, such as a long, yodeling call when he is on the hunt, and a short repeating bark once he trees his prey. Whining is normal as he anticipates the hunt.

A Tuatara
Tuatara

Only found on a few of New Zealand's islands!

A Turkish Angora
Turkish Angora

A breed that originated in central Turkey!

A Uakari
Uakari

Have a very short tail for their size!

A Vampire Bat
Vampire Bat

Have a heat sensor on the end of their nose!

A Vaquita
Vaquita

Smallest cetacean in the ocean

A Vervet Monkey
Vervet Monkey

Rarely found more than 450m from trees!

A Vizsla
Vizsla

Vizsla means searcher or tracker in Hungarian

A Volpino Italiano
Volpino Italiano

Almost went extinct before American Eskimo Dog breeders showed interest.

A Wallaby
Wallaby

There are roughly 30 different species!

A Walrus
Walrus

Inhabits the freezing waters of the Arctic Circle!

A Warthog
Warthog

Has two sets of tusks on it's face!

A Water Buffalo
Water Buffalo

Has been domesticated for thousands of years!

A Water Vole
Water Vole

The largest Vole species in the UK!

A Weasel
Weasel

The smallest carnivorous mammal in the world!

A Weimaraner
Weimaraner

The Weimaraner is nicknamed the gray ghost.

A Weimardoodle
Weimardoodle

This dog is also known as the Weimarpoo, the Weimaranerpoo, and the Weimaranerdoodle.

A Welsh Corgi
Welsh Corgi

There are two distinct breeds!

A Welsh Terrier
Welsh Terrier

The Welsh Terrier has the strength and tenacity to take on foxes and badgers.

A West Highland Terrier
West Highland Terrier

Most commonly white in colour!

A Western Gorilla
Western Gorilla

There are two sub-species!

A Western Lowland Gorilla
Western Lowland Gorilla

One of the great apes!

A Westiepoo
Westiepoo

This dog is known for cocking its head in a curious manner when listening to its owner.

A Wheaten Terrier
Wheaten Terrier

Originally bred as a farm dog, the Wheaten Terrier can be very protective of its domain.

A Whippet
Whippet

Quiet, gentle and restful dogs!

A White Rhinoceros
White Rhinoceros

The second largest animal on the land!

A White Tiger
White Tiger

None have been seen in the wild for 50 years!

A White-Faced Capuchin
White-Faced Capuchin

One of the world's most intelligent monkeys!

A White-tail deer
White-tail deer

White-tail deer are good swimmers

A Whoodle
Whoodle

Whoodles are good swimmers

A Wild Boar
Wild Boar

Males have a top tusk to sharpen the bottom one!

A Wildebeest
Wildebeest

Can trek more than 1,000 miles every year!

A Wire Fox Terrier
Wire Fox Terrier

The Wire Fox Terrier was bred from the now extinct Rough Coated Black and Tan Terrier to hunt down foxes.

A Wirehaired Pointing Griffon
Wirehaired Pointing Griffon

A Wirehaired Pointing Griffon’s coat makes it look like it has a mustache and beard!

A Wolf
Wolf

Thought to date back more than 300,000 years!

A Wolverine
Wolverine

Releases a strong smelling musk in defence!

A Wombat
Wombat

Spends most of the day underground!

A Wood Bison
Wood Bison

The reintroduction of wood bison into Alaska is considered one of the world’s best conservation success stories.

A Woolly Mammoth
Woolly Mammoth

Tusks grew to 16ft long!

A Woolly Monkey
Woolly Monkey

Has a long, strong prehensile tail!

A Xerus
Xerus

Squirrel that lives in burrows in Africa.

A Xoloitzcuintli
Xoloitzcuintli

The Xoloitzcuintli is the national dog of Mexico

A Yak
Yak

There are only a few left in the wild!

A Yakutian Laika
Yakutian Laika

The Yakute people were likely the first to use dogs to pull sleds, so the Yakutian Laika was probably among the first sled dogs.

A Yoranian
Yoranian

These dogs are very intelligent and are great with children.

A Yorkie Bichon
Yorkie Bichon

Yorkie Bichons can come in a wide range of colors including black, white, blonde, gray, golden, or dark brown.

A Yorkie Poo
Yorkie Poo

The Yorkie-Poo originated from the hybrid poodle phase of the late 20th century

A Yorkshire Terrier
Yorkshire Terrier

Highly energetic and eager for adventure!

A Zebra
Zebra

Stripe patterns are unique to each individual!

A Zebu
Zebu

There are around 75 different species!

A Zonkey
Zonkey

The offspring of Zebra and Donkey parents!

A Zorse
Zorse

The offspring of a Zebra and Horse parents!

A Zuchon
Zuchon

The breed often changes colors throughout its life, with its puppy coat becoming lighter over the first few years of life, then darkening as he ages.

Is it a Mammal? Your Questions Answered

From rodents to whales and everything in between, it’s not always easy to tell which animals are mammals and which animals fall under another category such as fish, reptiles, or amphibians. If you’ve ever questioned whether or not one of these animals is a mammal, this is the list for you! Read on to find out more about which species are considered mammals and what makes them qualify as such.

  • Are Sharks Mammals? Some shark species give live birth, but are they mammals since, unlike typical fish, their skeleton is made of cartilage? Find out more!
  • Are Bats Mammals? It’s somewhat baffling — bats are capable of flight, so does that make them birds or mammals?
  • Are Birds Mammals? Some birds, such as the kiwi, are flightless. Does that mean birds are classified as mammals? We’ve done the esearch.
  • Are Humans Mammals? It may sound like a ailly question, but are humans animals or mammals? And if we’re mammals, how do we differ from other mammalian creatures?
  • Are Marsupials Mammals? There are over 250 species that are classified as marsupials. But are they mammals?
  • Are Penguins Mammals? Penguins can swim under water and traverse the land, but they lay eggs. Do they qualify as mammals?
  • Are Fish Mammals? There are some species of fish that can breathe air, but are they considered mammals?
  • Are Chickens Mammals? Chickens have feathers, beaks, a four-chambered heart, and they lay eggs. DOes that make them a mammal or a bird?
  • Are Rodents Mammals? Rodents have hair, tails, teeth, and they give live birth — is that enough to make them mammals?
  • Are Dogs Mammals? Have you ever wondered whether or not man’s best friend is a mammal? Read on to find out!
  • Are Platypuses Mammals? Platypuses lay eggs while mammals do not. They are also semi-aquatic. But is it possible that platypuses are still mammals?
  • Are Seals Mammals? There are over 30 species of seals, and they live all over the world. They have fur, they’re semiaquatic, and they happpen to have flippers. So, are they mammals or not?
  • Are Elephants Mammals? Elephants are warm-blooded vertebrates that nurse their young, but they aren’t covered in fur like most mammals. Or are they?
  • Are Turtles Mammals? Is a turtle a mammal or a reptile? Turtles breathe air and don’t lay their eggs underwater. Find out more!
  • Are Cats Mammals? How many mammalian traits do cats have? Is it enough to classify them as mammals?
  • Are Armadillos Mammals? An armadillo certainly looks reptilian, with its hairless body. But is it a reptile or a mammal?
  • Are Owls Mammals? Owls hunt small animals, but are they considered to be one themselves?
  • Are Coconuts Mammals? Coconuts share some interesting characteristics with mammals, including the fact that they possess hair and milk. Read on to find out more about their similarites and differences.
  • Are Snakes Mammals? Some snakes give birth to live young, yet they’re cold-blooded. Does this make snakes a mammal or a reptile?

List of Mammals

Mammals by Letter Lists

Jump to a filtered list of Mammals that start with a specific letter!

What Are Mammals: Explained FAQs (Frequently Asked Questions) 

What is considered a mammal?

Mammals are those animals that have some of the 10 characteristics listed above. The most notable mammal characteristics include having hair or fur, having live births, and feeding their young milk.

What animals are Mammals?

There are nearly 6,500 publicly recognized mammal species with more being discovered all the time. Popular mammal examples include cats, dogs, horses, elephants, whales, and humans.

Are whales mammals?

Yes! Whales are marine mammals. Surprisingly, they even exhibit one of the hallmark traits of mammals and even have hair. Though, whales mostly have hair in the womb and it is mostly gone at or slightly after birth.

What is the largest mammal on earth?

The largest mammal on earth is the blue whale. At over 100ft in length and 350,000lbs blue whales are also the largest animal alive on earth today, as well as the largest animal that has ever lived!

What did mammals evolve from?

Mammals are believed to have evolved from reptiles during the triassic period (approximately 200 – 250 million years ago), specifically of the order Therapsida.

What is the smallest mammal?

At approximately 1.6 inches long and less than 1 ounce the smallest known mammal on earth today is the Etruscan Shrew.