The Big List of Mammals

The official mammal class is Mammalia. Animals that are considered 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:

Warm-blooded vertebrates – Mammals are endothermic, meaning they have a constant body temperature. Mammals are also vertebrates, meaning they have a backbone
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.
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.
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.
Able to produce milk – Mammals contain mammary glands. These glands give them the ability to produce milk to feed their offspring.
A diaphragm – Mammals have a diaphragm sitting between their heart and lungs
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.
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.
Neocortex – Mammals commonly have a neocortex in their brain. This specialized region allows them to both hear and see.
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.

Types of Mammals

Aardvark

Can move 2ft of soil in just 15 seconds!

Abyssinian

The oldest breed of cat in the world!

Affenpinscher

First bred in 17th century Germany!

Afghan Hound

First used as a shepherd and hunter!

African Bush Elephant

Can drink up to 50 gallons a day

African Civet

Secretes up to 4g of musk every week!

African Forest Elephant

Have large rounded ears to help keep them cool!

African Palm Civet

Solitary but gathers in groups!

African Wild Dog

Also known as the painted dog!

Ainu

An innate sense of direction!

Airedale Terrier

Very intelligent, independent and strong-minded!

Airedoodle

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

Akbash

Often used as a guard dog!

Akita

Very clean, intelligent and loyal!

Akita Shepherd

The Akita Shepherd descends from a lineage of working dogs.

Alabai

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

Alaskan Husky

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

Alaskan Malamute

Often used as sled dogs!

Alaskan Shepherd

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

Alpaca

They can spit up to 10 feet.

Alpine Dachsbracke

Good companion and hard-working breed!

Alpine Goat

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

Alusky

Alusky dogs are known for their sledding pulling skills.

Amazon River Dolphin (Pink Dolphin)

Also known as the 'Pink Dolphin'

American Alsatian

American Bulldog

Can jump up to 6ft high!

American Cocker Spaniel

Merry, outgoing, and eager to please!

American Coonhound

Easygoing and people-friendly!

American Eskimo Dog

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

American Foxhound

Sweet, kind, loyal, and very loving!

American Hairless Terrier

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

American Pit Bull Terrier

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

American Pygmy Goat

Can jump up to 5 feet

American Staffordshire Terrier

Bred to be extremely friendly!

American Water Spaniel

Friendly and intelligent!

Amur Leopard

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

Anatolian Shepherd Dog

Guards it's master's flocks!

Angora Goat

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

Anteater

Found throughout the Southern Hemisphere!

Antelope

Renew their horns every year!

Appenzeller Dog

Herding dog by nature!

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.

Arctic Fox

Extremely thick winter fur!

Arctic Hare

Eats berries found in the snow!

Arctic Wolf

Incredibly versatile and adaptive!

Armadillo

Can curl into a hard, protective ball!

Asian Elephant

Domesticated for hundreds of years!

Asian Palm Civet

It mainly eats mangos and coffee!

Asiatic Black Bear

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

Aurochs

Extinct ancestor of all domesticated cattle!

Aussiedoodle

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

Aussiedor

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

Australian Bulldog

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

Australian Cattle Dog

High energy levels and active minds!

Australian Kelpie Dog

Friendly, intelligent and energetic!

Australian Labradoodle

The "Australian" just refers to where the breed originated

Australian Mist

First bred in the 1700s!

Australian Retriever

The Australian Retriever may have two different eye colors.

Australian Shepherd

Sweet, faithful and affectionate!

Australian Terrier

Spirited, alert and courageous!

Axolotl

Found only in one complex of lakes!

Aye Aye

Thought to be extinct until 1957!

Babirusa

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

Baboon

Can travel more than four miles a day!

Bactrian Camel

The camel with two humps!

Badger

Can reach speeds of 30 km/h!

Baleen Whale

“Sings” a whale song during breeding season.

Balinese

Playful and energetic breed!

Banded Palm Civet

Markings give it camouflage!

Bandicoot

Bandicoot Many species are endangered or extinct!

Basenji Dog

Alert, affectionate and energetic!

Bassador

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

Basset Fauve de Bretagne

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

Basset Hound

Forget the training when not rewarded!

Bassetoodle

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

Bat

Detects prey using echolocation!

Bavarian Mountain Hound

Calm, quiet and poised!

Bea-Tzu

The Bea-Tzu has a fast-growing coat

Beabull

An excellent companion for cats!

Beagador

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

Beagle

Have become popular family pets!

Beagle Shepherd

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

Beaglier

These dogs have great sniffer abilities

Beago

Beagos are good swimmers like their Golden Retriever parent.

Bear

There are 8 different species!

Bearded Collie

Weekly brushing is mandatory!

Beaski

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

Beaver

Builds a dam from sticks and leaves!

Bedlington Terrier

Highly active and intelligent dogs!

Beefalo

Beefalo meat is leaner and higher in protein than beef

Belgian Shepherd

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

Bengal Tiger

The most numerous species of tiger!

Bergamasco

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

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.

Bernese Mountain Dog

Very loyal, faithful and affectionate!

Bernese Shepherd

Bernese shepherds prefer cool climates

Bichon Frise

Gentle mannered, playful and affectionate!

Bichpoo

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

Biewer Terrier

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

Bighorn Sheep

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

Bilby

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

Binturong

Also known as the Asian Bearcat!

Birman

Also known as the Sacred Cat of Burma!

Bison

Largest mammal in North America!

Black And Tan Coonhound

This dog has its own unique howl.

Black Rhinoceros

Horns can grow to 1.5m!

Black Russian Terrier

Confident, calm and highly intelligent!

Black-Footed Ferret

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

Bloodhound

Affectionate, gentle and even-tempered!

Blue Lacy Dog

Originated in Texas in the mid 1800s!

Blue Whale

The largest animal on Earth

Bluetick Coonhound

Has an uncanny knack for problem-solving!

Bobcat

About double the size of a domestic cat!

Boggle

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

Boglen Terrier

Boglen terriers are also occasionally known as boggles.

Bolognese Dog

From the northern Italian city of Bologna!

Bombay

Bred to look like a black panther!

Bongo

Long and heavy spiralled horns!

Bonobo

Shares 97% of the same DNA as humans!

Borador

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

Border Collie

Highly intelligent and alert breed!

Border Terrier

Small, rough-coated breed of terrier!

Bordoodle

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

Borkie

Most Borkies inherit the signature howl of their Beagle parent.

Bornean Orang-utan

Known to use large leaves as umbrellas!

Borneo Elephant

The smallest species of elephant!

Boston Terrier

Friendly, lovable and very strong!

Bottlenose Dolphin

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

Bowhead Whale

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

Boxador

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

Boxer Dog

Bright, energetic and playful!

Boxerdoodle

The Boxerdoodle has a strong hunting dog lineage.

Boxsky

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

Boxweiler

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

Boykin Spaniel

Enthusiastic working dog!

Brazilian Terrier

Small body and tri-coloured coat!

British Timber

Brittany

The breed was formerly known as the Brittany spaniel

Brown Bear

A dominant predator in it's environment!

Brown Hyena

They don’t laugh

Brussels Griffon

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

Buffalo

Has no real natural predators!

Bull Shark

Unpredictable and aggressive temperament!

Bull Terrier

Needs to be kept active!

Bulldog

Friendly, loving and docile!

Bullmastiff

Courageous, loyal and calm!

Burmese

Adoring, elegant and affectionate!

Bush Baby

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

Cairn Terrier

Intelligent, lively and strong!

Camel

Can survive without water for 10 months!

Canaan Dog

Has a strong survival instinct!

Canada Lynx

They have natural snowshoes

Canadian Eskimo Dog

Canadian Horse

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

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.

Cape Lion

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

Capybara

Excellent at both diving and swimming

Caracal

Has 20 different muscles in it's ears!

Caribou

Males and females grow antlers

Carolina Dog

Wild dog breed discovered in the 1970s!

Cashmere Goat

Cashmere goat are named after Kashmir regions of India and Pakistan

Cat

First domesticated by the Ancient Egyptians!

Cavador

The Cavador is a good service dog.

Cavalier King Charles Spaniel

Highly playful and affectionate!

Cavapoo

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

Cesky Fousek

An affectionate hunting dog!

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)

Chameleon

There are more than 160 different species!

Chamois

Natively found in the European mountains!

Cheagle

Some Cheagles have an excellent sense of smell.

Cheetah

The fastest land mammal in the world!

Chesapeake Bay Retriever

Bright and happy disposition!

Chihuahua

Curious and devoted personality!

Chimpanzee

Has 32 teeth including fang-like canines!

Chinchilla

Natively found in the Andes Mountain range!

Chinese Crested Dog

A hairless breed of dog!

Chinese Shar-Pei

These dogs have a blue and black tongue.

Chinook

A calm and friendly breed!

Chipmunk

There are 25 different species!

Chipoo

The Chipoo was first bred in the 1970s

Chiweenie

Chiweenies travel especially well.

Chorkie

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

Chow Chow

Loyal and affectionate to it's family!

Chow Shepherd

The Chow Shepherd is also known as the Sheprachow.

Clouded Leopard

Has canines that can be two inches long!

Clumber Spaniel

Has a thick, soft coat!

Coati

Found in dense forests and wet jungles!

Cockapoo

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

Collared Peccary

Form bands of up to 12 individuals!

Collie

Gentle and devoted!

Common Toad

Most active in wet weather!

Corgidor

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

Corgipoo

These dogs are highly intelligent and are easy to train.

Corkie

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

Corman Shepherd

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

Cotton-top Tamarin

Found in tropical forest edges!

Cougar

Largest feline in North America

Cow

There are nearly 1.5 million worldwide!

Coyote

Also known as the Prairie Wolf!

Crab-Eating Macaque

Found throughout the South-East Asian jungles!

Cross River Gorilla

Less than 300 remaining!

Curly Coated Retriever

A lively and fun-loving breed!

Cuscus

Has a long, strong prehensile tail!

Dachsador

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

Dachshund

Fun and playful breed of small dog!

Dalmadoodle

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

Dalmador

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

Dalmatian

Have an energetic and playful nature!

Dapple Dachshund

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

Deer

There are around 40 different species!

Deer Head Chihuahua

The Chihuahua is the smallest dog breed in the world.

Deutsche Bracke

Has long drop ears and a long narrow tail!

Dhole

Only 2,000 left in the wild!

Dik-Dik

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

Dingo

Natively found on the Australian continent!

Doberman Pinscher

A gentle, loyal and loving breed!

Dog

First domesticated in South-East Asia!

Dogo Argentino

Loyal and affectionate to their family!

Dogue De Bordeaux

Extremely loyal and devoted to it's master!

Dolphin

Can reach speeds of up to 25 mph!

Donkey

First domesticated 5,000 years ago!

Dorkie

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

Dormouse

Found in Europe, Africa and Asia!

Double Doodle

Exact origin unknown.

Doxiepoo

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

Doxle

Doxles have long floppy ears

Drever

Uncommon outside of Europe!

Dugong

Closely related to the Manatee!

Dunker

A friendly and relaxed dog!

Dusky Dolphin

Communicates using whistles, squeaks and clicks!

Eastern Gorilla

The largest primate in the world!

Eastern Lowland Gorilla

Less than 5,000 in the wild!

Echidna

Also known as the Spiny Anteater!

Egyptian Mau

An ancient breed of domestic cat!

Elephant

Spends around 22 hours a day eating!

Elephant Seal

The largest species of seal in the world!

Elephant Shrew

Found exclusively on the African continent!

Elk

Adult males can jump eight feet vertically

Emperor Tamarin

Has an elegant white moustache!

English Cocker Spaniel

Intelligent yet stubborn by nature!

English Cream Golden Retriever

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

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.

English Pointer

English Setter

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

English Shepherd

Highly intelligent and independent!

English Springer Spaniel

Friendly and eager to please!

Entlebucher Mountain Dog

Native to parts of the Swiss Alps!

Epagneul Pont Audemer

Hard-working, gentle and affectionate!

Ermine

A very bold and ferocious predator!

Eskimo Dog

Takes pure delight in cold weather!

Eskipoo

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

Estrela Mountain Dog

Very protective and stubborn!

Fallow deer

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

False Killer Whale

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

Feist

The word feisty derived from this type of dog.

Fennec Fox

Found in the African Sahara Desert!

Ferret

Ferrets can be trained to do tricks like dogs!

Field Spaniel

A sociable and adaptable breed!

Fin Whale

Found throughout ocean waters worldwide!

Finnish Spitz

Likes to bark a lot!

Fisher Cat

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

Fishing Cat

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

Flat-Coated Retriever

A game retrieving gun-dog!

Florida Panther

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

Flying Lemur

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

Flying Squirrel

Can glide up to 90 meters!

Fossa

Most closely related to the Mongoose!

Fox

There are 12 different species in the world!

Fox Terrier

First bred in the mid-19th century!

French Bulldog

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

Frenchton

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

Frengle

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

Fruit Bat

Among the largest bats in the world

Fur Seal

Found only in the Northern Hemisphere!

Genet

The Genet has retractable claws like a cat

Geoffroys Tamarin

Has distinctive V shape on head!

Gerberian Shepsky

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

Gerbil

Originally known as the Desert Rat!

German Pinscher

Highly intelligent and fast learners!

German Shepherd Guide

Highly active and fearless dogs!

German Sheppit

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

German Sheprador

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

German Shorthaired Pointer

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

German Spitz

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

Giant Armadillo

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

Giant Panda Bear

Bamboo makes up 99 per cent of their diet!

Giant Schnauzer

Large, powerful and dominant!

Giant Schnoodle

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

Gibbon

Found in dense jungles and tropical forests!

Giraffe

Long, black tongue can grow to 18 inches long!

Glechon

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

Glen Of Imaal Terrier

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

Goat

Most closely related to the Sheep!

Goberian

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

Goldador

Goldadors were not intentionally bred until the early 2000s!

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.

Golden Lion Tamarin

Native to the eastern rainforests of Brazil!

Golden Newfie

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

Golden Pyrenees

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

Golden Retriever

Trusting, kind and gentle!

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.

Golden Shepherd

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

Golden-Crowned Flying Fox

They eat figs almost exclusively

Goldendoodle

Due to their breeding, no two Goldendoodles are alike.

Gopher

They dig large networks of tunnels!

Gordon Setter

It's the largest and heaviest breed of setter.

Gorilla

The biggest of the world's primates!

Grasshopper Mouse

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

Gray Fox

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

Great Dane

Large and imposing in appearance!

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.

Great Pyrenees

Greater Swiss Mountain Dog

Protective and gentle by nature!

Greenland Dog

Strong and speedy breed of dog!

Grey Mouse Lemur

The largest species of mouse lemur!

Grey Seal

One of the rarest species of seal on Earth

Greyhound

Extremely fast and athletic!

Griffonshire

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

Grizzly Bear

Less than 10% make it into adulthood

Guinea Pig

Natively found in the Andes Mountain range!

Hamster

Able to run as quickly backwards as forwards!

Harbor Seal

Harbor seals can dive as deep as 1400 feet

Hare

Can reach speeds of over 40 mph!

Harp Seal

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

Harrier

Cheerful, tolerant and sweet-tempered!

Havanese

These are the only dogs that are native to Cuba

Havapoo

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

Havashire

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

Hawaiian Monk Seal

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

Hedgehog

Thought to be one of the oldest mammals on Earth!

Highland Cattle

Natively found in the Scottish Highlands!

Himalayan

Also known as the Colourpoint Persian!

Hippopotamus

Has pink anti-bacterial sweat!

Hoary Bat

The hoary bat travels hundreds of miles south for the winter

Honduran White Bat

The bat only eats figs.

Honey Badger

One of earth's bravest creatures!

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.

Horgi

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

Horse

Has evolved over 50 million years!

Howler Monkey

Spends 80% of it's time resting!

Human

Thought to have orignated 200,000 years ago!

Huskador

Huskadors are gaining in popularity as service dogs.

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.

Huskydoodle

Huskydoodles are known for their jumping abilities!

Hyena

There are four different species!

Ibex

Can jump over 6 feet straight up from a standstill

Ibizan Hound

Intelligent, active and engaging by nature!

Impala

Able to jump over 10 feet high

Indian Elephant

Found throughout south-east Asia!

Indian Giant Squirrel

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

Indian Palm Squirrel

Natively found in parts of India and Sri Lanka!

Indian Rhinoceros

Also known as the one-horned rhino!

Indochinese Tiger

Now thought to be extinct in China!

Indri

The largest species of Lemur!

Irish Doodle

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

Irish Setter

Can live for up to 16 years!

Irish Terrier

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

Irish Water Spaniel

The only known canine with a purple hue.

Irish WolfHound

Sweet-tempered, patient and thoughtful!

Italian Greyhound

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

Jack Russell

Intelligent, athletic and fearless!

Jackabee

The Jackabee has an excellent sense of smell.

Jackal

Can maintain speeds of 16 km/h!

Jaguar

The largest feline on the American continent!

Japanese Chin

Alert, intelligent and independent!

Japanese Macaque

Has cheek pouches for storing food!

Japanese Spitz

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

Japanese Squirrel

The Japanese squirrel hoards its food for the winter

Japanese Terrier

Japanese Terriers are also called Nippon Terriers

Javan Rhinoceros

Only has a 25cm long horn!

Javanese

Features that closely resemble a Siamese cat!

Jerboa

Tiny rodent with a kangaroo-like jump!

Kai Ken

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

Kangaroo

Females have a deep pouch on their front!

Kangaroo Rat

Merriam’s kangaroo rats literally never have to drink water

Kerry Blue Terrier

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

Key Deer

Bucks grow new antlers every year.

Kiko Goat

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

Killer Whale

Typically consumes over 200 kg of food a day!

Kinder Goat

Best jumper of all goats

Kinkajou

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

Koala

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

Kodkod

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

Kooikerhondje

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

Koolie

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

Kudu

Lives in herds of up to 24 individuals!

Kuvasz

Ownership of this dog was once restricted to the Hungarian nobility

Labmaraner

Loves to participate in activities.

Labradane

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

Labradoodle

Friendly and energetic mix-breed!

Labrador Retriever

Well-balanced, friendly and versatile!

Labraheeler

These dogs have medium-sized pendant ears.

Lakeland Terrier

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

LaMancha Goat

Have tiny ears named “gophers” or “elves”

Lancashire Heeler

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

Lemming

Does not hibernate during the bitter Arctic winter!

Lemur

Natively found on the island of Madagascar!

Leopard

Spends much of the time high in the trees!

Leopard Cat

There are 11 different species!

Leopard Seal

The world's most aggressive seal species!

Lhasa Apso

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

Lhasapoo

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

Liger

The offspring of a lion and tiger parents!

Lion

Lives in small groups called prides!

Little Brown Bat

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

Llama

Natively found in the Andes Mountain range!

Lynx

Live in dens in rocks and under ledges!

Mackenzie Wolf

Will travel up to 70 miles in a single day.

Maine Coon

Folklore says it's half cat, half raccoon!

Malayan Civet

Also known as the Oriental Civet!

Malayan Tiger

Found in less-dense jungles!

Malteagle

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

Maltese

Originally bred in Europe!

Maltese Shih Tzu

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

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.

Manatee

Also known as the Sea Cow!

Manchester Terrier

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

Mandrill

Distinctively coloured noses and rumps!

Maned Wolf

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

Marble Fox

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

Markhor

Less than 2,500 left in the wild!

Marmot

A marmot spends 80% of its life below ground

Masked Palm Civet

Found throughout Asia, India and China!

Mastador

The Mastador gets its enormous size from its Mastiff parent

Mastiff

Courageous, calm and affectionate!

Meagle

The Meagle has an incredible sense of smell.

Meerkat

One will stand on guard to watch for predators!

Mexican Free-Tailed Bat

Some colonies have millions of bats

Mini Labradoodle

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

Miniature Bull Terrier

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

Miniature Pinscher

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

Mink

The mink can swim up to 100 feet underwater.

Minke Whale

There are two recognised species!

Mole

Primarily hunts and feeds on Earthworms!

Mongoose

Range in size from just 1 to 3 foot!

Mongrel

Has characteristics of two or more breeds!

Monkey

There are around 260 known species!

Moorhen

Feeds on aquatic insects and water-spiders!

Moose

Renews it's enormous antlers every year!

Morkie

A Morkie puppy can weigh as little as 4 ounces.

Mountain Cur

Mountain Feist

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

Mountain Gorilla

Isolated populations found in the mountains!

Mountain Lion

Has no real natural predators!

Mouse

Found on every continent on Earth!

Mule

The offspring of a horse and donkey parents!

Muntjac

The muntjac is the smallest type of deer in the world

Muskox

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

Muskrat

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

Naked Mole Rat

Naked mole rats don’t get cancer

Narwhal

Lives and hunts in the frigid Arctic!

Neanderthal

Roamed Asia and Europe for around 100,000 years!

Neapolitan Mastiff

Fearless and extremely protective of it's home!

Newfoundland

Introduced by Vikings more than 1,000 years ago!

Newfypoo

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

Nigerian Goat

Produces a lot of milk for its small size

Norfolk Terrier

Fearless but not aggressive!

North American Black Bear

Short claws make them good tree climbers!

Northern Fur Seal

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

Northern Inuit Dog

Norwegian Buhund

The Norwegian Buhund once worked on Norse homesteads

Norwegian Elkhound

This breed traveled with the Vikings!

Norwegian Forest

Has a long, thick double coat of fur!

Norwich Terrier

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

Nubian Goat

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

Numbat

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

Ocelot

Also known as the Painted Leopard!

Okapi

Eats more than 100 different types of plant!

Old English Sheepdog

Intelligent, sociable and playful!

Opossum

Thought to be immune to certain snake venom!

Orang-utan

Shares 97% of its DNA with humans!

Otter

There are 13 different species worldwide

Otterhound

Otterhounds have webbed feet making them great swimmers!

Pademelon

Inhabits the jungles of the far east!

Pangolin

Bad eyesight, but great sense of smell

Panther

Prefers to hunt at night than during the day!

Parson Russell Terrier

The root stock of the breed was a dog named Trump

Patas Monkey

The fastest species of primate in the world!

Patterdale Terrier

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

Peagle

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

Peekapoo

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

Pekingese

Thought to be over 2,000 years old!

Pembroke Welsh Corgi

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

Pere Davids Deer

Has webbing between its toes, aiding in swimming!

Persian

Thought to have originated in the Middle East!

Petit Basset Griffon Vendéen

A small dog with a big, lively personality.

Petite Goldendoodle

Like their purebred parents, these dogs love the water!

Pheasant

Females lay between 8 and 12 eggs per clutch!

Pied Tamarin

Only found in one area of Brazil!

Pig

Thought to have been domesticated in 9,000 BC!

Pika

Found in mountainous regions and rocky areas

Pine Marten

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

Pink Fairy Armadillo

The smallest known species of Armadillo

Pitador

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

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.

Platypus

One of the only mammals to lay eggs!

Pocket Beagle

Queen Elizabeth I of England once owned several Pocket Beagles

Pocket Pitbull

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

Pointer

An independent, loyal and high energy breed!

Polar Bear

Could be extinct within the next 30 years!

Polish Lowland Sheepdog

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

Pomapoo

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

Pomeagle

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

Pomeranian

The ancestors of the Pomeranian were sled dogs.

Pomsky

The howls and barks of a Pomsky can sound like singing

Poochon

The Poochon was first bred in Australia.

Poodle

Intelligent, alert and active!

Poogle

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

Porcupine

There are 30 different species worldwide!

Porpoise

Surprisingly, not a dolphin!

Possum

There are 69 species on the Australian continent!

Potoroo

They can carry items with their tail.

Prairie Dog

Prairie dog “towns” can consists of hundreds of individuals

Proboscis Monkey

Natively found on the island of Borneo!

Pronghorn

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

Pudelpointer

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

Pug

Fun and sociable, yet stubborn!

Pugapoo

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

Puggle

These dogs are active and are often patient around children.

Pugshire

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

Puma

Has longer back legs than front legs!

Pygmy Hippopotamus

Spends more time on land than in water!

Pygmy Marmoset

The smallest species of monkey in the world!

Pygora Goat

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

Pyrador

Pyredoodle

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

Quagga

The quagga is a subspecies of plains zebra.

Quokka

Makes runways through the long grasses!

Quoll

Found across Australia and Papua New Guinea!

Rabbit

There are more than 50 different species!

Raccoon

Known to wash their food before eating it!

Raccoon Dog

The only hibernating canine!

Ragdoll

One of the larger breeds of domestic cat!

Raggle

Raggles are known for their energy and curiosity.

Rat

Omnivores that eat anything!

Rat Terrier

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

Red Fox

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

Red Panda

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

Red Squirrel

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

Red Wolf

Only 100 in the wild!

Red-handed Tamarin

Red hair on hands on feet!

Redbone Coonhound

Originally bred to track raccoons.

Reindeer

Also known as the Caribou

Rhinoceros

It's horns are made from keratin!

Rock Hyrax

Actually related to Elephants and Manatees!

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.

Roe Deer

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

Rottsky

Many Rottskies have one brown eye and one blue eye.

Rottweiler

Strong, loyal and self-assured!

Russell Terrier

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

Russian Bear Dog

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

Russian Blue

First brought to the UK in the 1800s!

Saarloos Wolfdog

Saber-Toothed Tiger

Canines up to 7 inches long!

Sable

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

Saiga

Large noses help filter out dust

Saint Berdoodle

Saint Bernard

Gentle, loyal and friendly!

Saint Shepherd

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

Samoyed

Saola

Only known to science since 1992!

Schipperke

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

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!

Schnoodle

Scimitar-horned Oryx

Believed to be the inspiration for unicorn myths!

Scottish Terrier

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

Sea Lion

It's flippers allow it to walk on the land

Sea Otter

Eats over 40 different marine species!

Seal

There are 30 different species worldwide!

Sealyham Terrier

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

Sei Whale

This whale is one of the fastest of the cetaceans

Serval

Can leap more than 1 meter into the air!

Sheep

Around 35 million in the English countryside!

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.

Shepadoodle

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

Shepkita

These dogs can sometimes be overly aggressive.

Shepweiler

The Shepweiler is an excellent guard dog.

Shiba Inu

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

Shih Poo

Shih Tzu

Can live for up to 15 years!

Shollie

Shollies are a fairly new type of crossbreed!

Siamese

Originated from temple cats in Thailand!

Siberian

An exceptionally agile jumper!

Siberian Husky

Is adequately warm in sub-zero temperatures!

Siberian Retriever

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

Siberian Tiger

Also known as the Amur tiger!

Siberpoo

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

Silky Terrier

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

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.

Skunk

Also known as the Polecat!

Skye Terrier

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

Sloth

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

Smooth Fox Terrier

These dogs are known for their fast digging abilities.

Snapping Turtle

Only found in North America!

Snorkie

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

Snow Leopard

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

Snowshoe

Thought to have originated in the 1960s!

Snowshoe Hare

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

Somali

Active, intelligent and playful!

South China Tiger

There are less than 20 in the wild!

Spanador

The Spanador is a good swimmer.

Spanish Goat

They have long, horizontal ears.

Spanish Mastiff

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

Spectacled Bear

Native to the Andes mountains of South America!

Sperm Whale

Each tooth weighs 1kg!

Spider Monkey

Found in the tropical jungles of South America!

Springbok

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

Springerdoodle

Squirrel

Small rodents found in woodlands worldwide!

Squirrel Monkey

Lives in groups of up to 500 individuals!

Sri Lankan Elephant

Now restricted to a few parks!

Stabyhoun

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

Staffordshire Bull Terrier

Known for their loyalty to their family!

Standard Schnauzer

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

Star-nosed mole

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

Steller’s Sea Cow

Hunted to extinction in 17 years!

Stoat

Average adults weigh about 200 grams!

Striped Hyena

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

Sugar Glider

Can glide for over 100 feet before touching the ground

Sumatran Elephant

Less than 2,000 left in the wild!

Sumatran Orang-utan

Known to make mental maps of the forest!

Sumatran Rhinoceros

The smallest species of rhino!

Sumatran Tiger

The smallest species of tiger!

Sun Bear

The smallest species of bear in the world!

Swedish Vallhund

Syrian Hamster

Can get used to and respond to human voice

Taco Terrier

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

Tamaskan

Tapanuli Orang-utan

Inhabits an isolated mountain range in northwestern Sumatra!

Tapir

Most closely related to horses and rhinos!

Tarsier

Each eye weighs more than their whole brain!

Tasmanian Devil

Exclusively found on the island of Tasmania!

Tasmanian Tiger

The Tasmanian tiger could open its mouth almost 90 degrees.

Teddy Bear Hamster

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

Teddy Roosevelt Terrier

Often just called 'Teddies' by owners

Tenterfield Terrier

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

Terrier

Terriers were once the greatest dogs in the world.

Texas Heeler

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

Thai Ridgeback

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

Tibetan Fox

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

Tibetan Mastiff

Originally bred in the Himalayan mountains!

Tibetan Spaniel

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

Tibetan Terrier

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

Tiffany

Eye color intensifies with age!

Tiger

The largest feline in the world!

Torkie

The Torkie has a soft silky coat

Toy Fox Terrier

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

Toy Poodle

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

Tree Kangaroo

It’s the only macropod that lives in trees.

Tuatara

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

Turkish Angora

A breed that originated in central Turkey!

Uakari

Have a very short tail for their size!

Utonagan

Vampire Bat

Have a heat sensor on the end of their nose!

Vaquita

Smallest cetacean in the ocean

Vervet Monkey

Rarely found more than 450m from trees!

Wallaby

There are roughly 30 different species!

Walrus

Inhabits the freezing waters of the Arctic Circle!

Warthog

Has two sets of tusks on it's face!

Water Buffalo

Has been domesticated for thousands of years!

Water Vole

The largest Vole species in the UK!

Weasel

The smallest carnivorous mammal in the world!

Weimaraner

The Weimaraner is nicknamed the gray ghost.

Weimardoodle

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

Welsh Corgi

There are two distinct breeds!

Welsh Terrier

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

West Highland Terrier

Most commonly white in colour!

Western Gorilla

There are two sub-species!

Western Lowland Gorilla

One of the great apes!

Westiepoo

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

Wheaten Terrier

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

Whippet

Quiet, gentle and restful dogs!

White Rhinoceros

The second largest animal on the land!

White Tiger

None have been seen in the wild for 50 years!

White-Faced Capuchin

One of the world's most intelligent monkeys!

White-tail deer

White-tail deer are good swimmers

Whoodle

Whoodles are good swimmers

Wild Boar

Males have a top tusk to sharpen the bottom one!

Wildebeest

Can trek more than 1,000 miles every year!

Wire Fox Terrier

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

Wirehaired Pointing Griffon

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

Wolf

Thought to date back more than 300,000 years!

Wolverine

Releases a strong smelling musk in defence!

Wombat

Spends most of the day underground!

Wood Bison

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

Woolly Mammoth

Tusks grew to 16ft long!

Woolly Monkey

Has a long, strong prehensile tail!

Xerus

Squirrel that lives in burrows in Africa.

Xoloitzcuintli

The Xoloitzcuintli is the national dog of Mexico

Yak

There are only a few left in the wild!

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.

Yoranian

These dogs are very intelligent and are great with children.

Yorkie Bichon

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

Yorkie Poo

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

Yorkshire Terrier

Highly energetic and eager for adventure!

Zebra

Stripe patterns are unique to each individual!

Zebu

There are around 75 different species!

Zonkey

The offspring of Zebra and Donkey parents!

Zorse

The offspring of a Zebra and Horse parents!

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.