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Mammals

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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. 

The 10 Mammal Characteristics – Listed

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. 

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!

Akbash

Often used as a guard dog!

Akita

Very clean, intelligent and loyal!

Alaskan Malamute

Often used as sled dogs!

Alpaca

They can spit up to 10 feet.

Alpine Dachsbracke

Good companion and hard-working breed!

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 Pit Bull Terrier

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

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!

Anteater

Found throughout the Southern Hemisphere!

Antelope

Renew their horns every year!

Appenzeller Dog

Herding dog by nature!

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!

Australian Cattle Dog

High energy levels and active minds!

Australian Kelpie Dog

Friendly, intelligent and energetic!

Australian Mist

First bred in the 1700s!

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!

Baboon

Can travel more than four miles a day!

Bactrian Camel

The camel with two humps!

Badger

Can reach speeds of 30 km/h!

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!

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!

Bat

Detects prey using echolocation!

Bavarian Mountain Hound

Calm, quiet and poised!

Beagle

Have become popular family pets!

Bear

There are 8 different species!

Bearded Collie

Weekly brushing is mandatory!

Beaver

Builds a dam from sticks and leaves!

Bedlington Terrier

Highly active and intelligent dogs!

Bengal Tiger

The most numerous species of tiger!

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!

Bichon Frise

Gentle mannered, playful and affectionate!

Biewer Terrier

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

Binturong

Also known as the Asian Bearcat!

Birman

Also known as the Sacred Cat of Burma!

Bison

Largest mammal in North America!

Black Rhinoceros

Horns can grow to 1.5m!

Black Russian Terrier

Confident, calm and highly intelligent!

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!

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!

Border Collie

Highly intelligent and alert breed!

Border Terrier

Small, rough-coated breed of terrier!

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.

Boxer Dog

Bright, energetic and playful!

Boykin Spaniel

Enthusiastic working dog!

Brazilian Terrier

Small body and tri-coloured coat!

British Timber
Brown Bear

A dominant predator in it's environment!

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!

Cairn Terrier

Intelligent, lively and strong!

Camel

Can survive without water for 10 months!

Canaan Dog

Has a strong survival instinct!

Canadian Eskimo Dog
Capybara

Excellent at both diving and swimming

Caracal

Has 20 different muscles in it's ears!

Carolina Dog

Wild dog breed discovered in the 1970s!

Cat

First domesticated by the Ancient Egyptians!

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!

Chameleon

There are more than 160 different species!

Chamois

Natively found in the European mountains!

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!

Chinook

A calm and friendly breed!

Chipmunk

There are 25 different species!

Chow Chow

Loyal and affectionate to it's family!

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!

Collared Peccary

Form bands of up to 12 individuals!

Collie

Gentle and devoted!

Common Toad

Most active in wet weather!

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!

Dachshund

Fun and playful breed of small dog!

Dalmatian

Have an energetic and playful nature!

Deer

There are around 40 different species!

Deutsche Bracke

Has long drop ears and a long narrow tail!

Dhole

Only 2,000 left in the wild!

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!

Dormouse

Found in Europe, Africa and Asia!

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!

Emperor Tamarin

Has an elegant white moustache!

English Cocker Spaniel

Intelligent yet stubborn by nature!

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!

Estrela Mountain Dog

Very protective and stubborn!

False Killer Whale

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

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!

Fishing Cat

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

Flat-Coated Retriever

A game retrieving gun-dog!

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

Fur Seal

Found only in the Northern Hemisphere!

Geoffroys Tamarin

Has distinctive V shape on head!

Gerbil

Originally known as the Desert Rat!

German Pinscher

Highly intelligent and fast learners!

German Shepherd Guide

Highly active and fearless dogs!

Giant Panda Bear

Bamboo makes up 99 per cent of their diet!

Giant Schnauzer

Large, powerful and dominant!

Gibbon

Found in dense jungles and tropical forests!

Giraffe

Long, black tongue can grow to 18 inches long!

Goat

Most closely related to the Sheep!

Golden Lion Tamarin

Native to the eastern rainforests of Brazil!

Golden Retriever

Trusting, kind and gentle!

Golden-Crowned Flying Fox

They eat figs almost exclusively

Gopher

They dig large networks of tunnels!

Gorilla

The biggest of the world's primates!

Great Dane

Large and imposing in appearance!

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!

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!

Hare

Can reach speeds of over 40 mph!

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.

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!

Honey Badger

One of earth's bravest creatures!

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!

Hyena

There are four different species!

Ibis

Found in swamps, marshes and wetlands!

Ibizan Hound

Intelligent, active and engaging by nature!

Impala

Able to jump over 10 feet high

Indian Elephant

Found throughout south-east Asia!

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 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!

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!

Javan Rhinoceros

Only has a 25cm long horn!

Javanese

Features that closely resemble a Siamese cat!

Jerboa

Tiny rodent with a kangaroo-like jump!

Kangaroo

Females have a deep pouch on their front!

Killer Whale

Typically consumes over 200 kg of food a day!

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!

Kudu

Lives in herds of up to 24 individuals!

Labradoodle

Friendly and energetic mix-breed!

Labrador Retriever

Well-balanced, friendly and versatile!

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!

Liger

The offspring of a lion and tiger parents!

Lion

Lives in small groups called prides!

Llama

Natively found in the Andes Mountain range!

Lynx

Live in dens in rocks and under ledges!

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!

Maltese

Originally bred in Europe!

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!

Mandrill

Distinctively coloured noses and rumps!

Maned Wolf

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

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!

Mastiff

Courageous, calm and affectionate!

Meerkat

One will stand on guard to watch for predators!

Mexican Free-Tailed Bat

Some colonies have millions of bats

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!

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!

Muskrat

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

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!

Norfolk Terrier

Fearless but not aggressive!

North American Black Bear

Short claws make them good tree climbers!

Northern Inuit Dog
Norwegian Forest

Has a long, thick double coat of fur!

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

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!

Patas Monkey

The fastest species of primate in the world!

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!

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.

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

Pink Fairy Armadillo

The smallest known species of Armadillo

Platypus

One of the only mammals to lay eggs!

Pointer

An independent, loyal and high energy breed!

Polar Bear

Could be extinct within the next 30 years!

Pomapoo

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

Pomeranian

The ancestors of the Pomeranian were sled dogs.

Poodle

Intelligent, alert and active!

Porcupine

There are 30 different species worldwide!

Porpoise

Surprisingly, not a dolphin!

Possum

There are 69 species on the Australian continent!

Proboscis Monkey

Natively found on the island of Borneo!

Pug

Fun and sociable, yet stubborn!

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!

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!

Rat

Omnivores that eat anything!

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 Wolf

Only 100 in the wild!

Red-handed Tamarin

Red hair on hands on feet!

Reindeer

Also known as the Caribou

Rhinoceros

It's horns are made from keratin!

Rock Hyrax

Actually related to Elephants and Manatees!

Rottweiler

Strong, loyal and self-assured!

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!

Samoyed
Saola

Only known to science since 1992!

Schnoodle
Scimitar-horned Oryx

Believed to be the inspiration for unicorn myths!

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!

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.

Shiba Inu

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

Shih Tzu

Can live for up to 15 years!

Siamese

Originated from temple cats in Thailand!

Siberian

An exceptionally agile jumper!

Siberian Husky

Is adequately warm in sub-zero temperatures!

Siberian Tiger

Also known as the Amur tiger!

Skunk

Also known as the Polecat!

Sloth

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

Snapping Turtle

Only found in North America!

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!

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!

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!

Staffordshire Bull Terrier

Known for their loyalty to their family!

Steller’s Sea Cow

Hunted to extinction in 17 years!

Stoat

Average adults weigh about 200 grams!

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
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!

Teddy Roosevelt Terrier

Often just called 'Teddies' by owners

Tibetan Mastiff

Originally bred in the Himalayan mountains!

Tiffany

Eye colour intensifies with age!

Tiger

The largest feline in the world!

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!

Welsh Corgi

There are two distinct breeds!

West Highland Terrier

Most commonly white in colour!

Western Gorilla

There are two sub-species!

Western Lowland Gorilla

One of the great apes!

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!

Wild Boar

Males have a top tusk to sharpen the bottom one!

Wildebeest

Can trek more than 1,000 miles every year!

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!

Woolly Mammoth

Tusks grew to 16ft long!

Woolly Monkey

Has a long, strong prehensile tail!

Xerus

Squirrel that lives in burrows in Africa.

Yak

There are only a few left in the wild!

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

  • Aardvark
  • Abyssinian
  • Affenpinscher
  • Afghan Hound
  • African Bush Elephant
  • African Civet
  • African Forest Elephant
  • African Palm Civet
  • African Wild Dog
  • Ainu
  • Airedale Terrier
  • Akbash
  • Akita
  • Alaskan Malamute
  • Alpaca
  • Alpine Dachsbracke
  • Amazon River Dolphin (Pink Dolphin)
  • American Alsatian
  • American Bulldog
  • American Cocker Spaniel
  • American Coonhound
  • American Eskimo Dog
  • American Foxhound
  • American Pit Bull Terrier
  • American Staffordshire Terrier
  • American Water Spaniel
  • Amur Leopard
  • Anatolian Shepherd Dog
  • Anteater
  • Antelope
  • Appenzeller Dog
  • Arctic Fox
  • Arctic Hare
  • Arctic Wolf
  • Armadillo
  • Asian Elephant
  • Asian Palm Civet
  • Asiatic Black Bear
  • Australian Cattle Dog
  • Australian Kelpie Dog
  • Australian Mist
  • Australian Shepherd
  • Australian Terrier
  • Axolotl
  • Aye Aye
  • Baboon
  • Bactrian Camel
  • Badger
  • Balinese
  • Banded Palm Civet
  • Bandicoot
  • Basenji Dog
  • Basset Fauve de Bretagne
  • Basset Hound
  • Bat
  • Bavarian Mountain Hound
  • Beagle
  • Bear
  • Bearded Collie
  • Beaver
  • Bedlington Terrier
  • Bengal Tiger
  • Bernedoodle
  • Bernese Mountain Dog
  • Bichon Frise
  • Biewer Terrier
  • Binturong
  • Birman
  • Bison
  • Black Rhinoceros
  • Black Russian Terrier
  • Bloodhound
  • Blue Lacy Dog
  • Blue Whale
  • Bluetick Coonhound
  • Bobcat
  • Bolognese Dog
  • Bombay
  • Bongo
  • Bonobo
  • Border Collie
  • Border Terrier
  • Bornean Orang-utan
  • Borneo Elephant
  • Boston Terrier
  • Bottlenose Dolphin
  • Bowhead Whale
  • Boxer Dog
  • Boykin Spaniel
  • Brazilian Terrier
  • British Timber
  • Brown Bear
  • Buffalo
  • Bull Shark
  • Bull Terrier
  • Bulldog
  • Bullmastiff
  • Burmese
  • Cairn Terrier
  • Camel
  • Canaan Dog
  • Canadian Eskimo Dog
  • Capybara
  • Caracal
  • Carolina Dog
  • Cat
  • Cavalier King Charles Spaniel
  • Cavapoo
  • Cesky Fousek
  • Chameleon
  • Chamois
  • Cheetah
  • Chesapeake Bay Retriever
  • Chihuahua
  • Chimpanzee
  • Chinchilla
  • Chinese Crested Dog
  • Chinook
  • Chipmunk
  • Chow Chow
  • Clouded Leopard
  • Clumber Spaniel
  • Coati
  • Collared Peccary
  • Collie
  • Common Toad
  • Cotton-top Tamarin
  • Cougar
  • Cow
  • Coyote
  • Crab-Eating Macaque
  • Cross River Gorilla
  • Curly Coated Retriever
  • Cuscus
  • Dachshund
  • Dalmatian
  • Deer
  • Deutsche Bracke
  • Dhole
  • Dingo
  • Doberman Pinscher
  • Dog
  • Dogo Argentino
  • Dogue De Bordeaux
  • Dolphin
  • Donkey
  • Dormouse
  • Drever
  • Dugong
  • Dunker
  • Dusky Dolphin
  • Eastern Gorilla
  • Eastern Lowland Gorilla
  • Echidna
  • Egyptian Mau
  • Elephant
  • Elephant Seal
  • Elephant Shrew
  • Emperor Tamarin
  • English Cocker Spaniel
  • English Shepherd
  • English Springer Spaniel
  • Entlebucher Mountain Dog
  • Epagneul Pont Audemer
  • Ermine
  • Eskimo Dog
  • Estrela Mountain Dog
  • False Killer Whale
  • Fennec Fox
  • Ferret
  • Field Spaniel
  • Fin Whale
  • Finnish Spitz
  • Fishing Cat
  • Flat-Coated Retriever
  • Flying Squirrel
  • Fossa
  • Fox
  • Fox Terrier
  • French Bulldog
  • Fur Seal
  • Geoffroys Tamarin
  • Gerbil
  • German Pinscher
  • German Shepherd Guide
  • Giant Panda Bear
  • Giant Schnauzer
  • Gibbon
  • Giraffe
  • Goat
  • Golden Lion Tamarin
  • Golden Retriever
  • Golden-Crowned Flying Fox
  • Gopher
  • Gorilla
  • Great Dane
  • Great Pyrenees
  • Greater Swiss Mountain Dog
  • Greenland Dog
  • Grey Mouse Lemur
  • Grey Seal
  • Greyhound
  • Grizzly Bear
  • Guinea Pig
  • Hamster
  • Hare
  • Harrier
  • Havanese
  • Havapoo
  • Hedgehog
  • Highland Cattle
  • Himalayan
  • Hippopotamus
  • Honey Badger
  • Horse
  • Howler Monkey
  • Human
  • Hyena
  • Ibis
  • Ibizan Hound
  • Impala
  • Indian Elephant
  • Indian Palm Squirrel
  • Indian Rhinoceros
  • Indochinese Tiger
  • Indri
  • Irish Doodle
  • Irish Setter
  • Irish WolfHound
  • Italian Greyhound
  • Jack Russell
  • Jackal
  • Jaguar
  • Japanese Chin
  • Japanese Macaque
  • Javan Rhinoceros
  • Javanese
  • Jerboa
  • Kangaroo
  • Killer Whale
  • Kinkajou
  • Koala
  • Kudu
  • Labradoodle
  • Labrador Retriever
  • Lemming
  • Lemur
  • Leopard
  • Leopard Cat
  • Leopard Seal
  • Liger
  • Lion
  • Llama
  • Lynx
  • Maine Coon
  • Malayan Civet
  • Malayan Tiger
  • Maltese
  • Maltipoo
  • Manatee
  • Mandrill
  • Maned Wolf
  • Markhor
  • Marmot
  • Masked Palm Civet
  • Mastiff
  • Meerkat
  • Mexican Free-Tailed Bat
  • Mink
  • Minke Whale
  • Mole
  • Mongoose
  • Mongrel
  • Monkey
  • Moorhen
  • Moose
  • Mountain Gorilla
  • Mountain Lion
  • Mouse
  • Mule
  • Muskrat
  • Neanderthal
  • Neapolitan Mastiff
  • Newfoundland
  • Norfolk Terrier
  • North American Black Bear
  • Northern Inuit Dog
  • Norwegian Forest
  • Numbat
  • Ocelot
  • Okapi
  • Old English Sheepdog
  • Opossum
  • Orang-utan
  • Otter
  • Pademelon
  • Pangolin
  • Panther
  • Patas Monkey
  • Peekapoo
  • Pekingese
  • Pere Davids Deer
  • Persian
  • Petit Basset Griffon Vendéen
  • Pheasant
  • Pied Tamarin
  • Pig
  • Pika
  • Pink Fairy Armadillo
  • Platypus
  • Pointer
  • Polar Bear
  • Pomapoo
  • Pomeranian
  • Poodle
  • Porcupine
  • Porpoise
  • Possum
  • Proboscis Monkey
  • Pug
  • Puma
  • Pygmy Hippopotamus
  • Pygmy Marmoset
  • Quokka
  • Quoll
  • Rabbit
  • Raccoon
  • Raccoon Dog
  • Ragdoll
  • Rat
  • Red Fox
  • Red Panda
  • Red Wolf
  • Red-handed Tamarin
  • Reindeer
  • Rhinoceros
  • Rock Hyrax
  • Rottweiler
  • Russian Blue
  • Saarloos Wolfdog
  • Saber-Toothed Tiger
  • Sable
  • Saiga
  • Saint Berdoodle
  • Saint Bernard
  • Samoyed
  • Saola
  • Schnoodle
  • Scimitar-horned Oryx
  • Sea Lion
  • Sea Otter
  • Seal
  • Serval
  • Sheep
  • Sheepadoodle
  • Shiba Inu
  • Shih Tzu
  • Siamese
  • Siberian
  • Siberian Husky
  • Siberian Tiger
  • Skunk
  • Sloth
  • Snapping Turtle
  • Snowshoe
  • Snowshoe Hare
  • Somali
  • South China Tiger
  • Spectacled Bear
  • Sperm Whale
  • Spider Monkey
  • Squirrel
  • Squirrel Monkey
  • Sri Lankan Elephant
  • Staffordshire Bull Terrier
  • Steller’s Sea Cow
  • Stoat
  • Sugar Glider
  • Sumatran Elephant
  • Sumatran Orang-utan
  • Sumatran Rhinoceros
  • Sumatran Tiger
  • Sun Bear
  • Swedish Vallhund
  • Tamaskan
  • Tapanuli Orang-utan
  • Tapir
  • Tarsier
  • Tasmanian Devil
  • Teddy Roosevelt Terrier
  • Tibetan Mastiff
  • Tiffany
  • Tiger
  • Tuatara
  • Turkish Angora
  • Uakari
  • Utonagan
  • Vampire Bat
  • Vaquita
  • Vervet Monkey
  • Wallaby
  • Walrus
  • Warthog
  • Water Buffalo
  • Water Vole
  • Weasel
  • Welsh Corgi
  • West Highland Terrier
  • Western Gorilla
  • Western Lowland Gorilla
  • Whippet
  • White Rhinoceros
  • White Tiger
  • White-Faced Capuchin
  • Wild Boar
  • Wildebeest
  • Wolf
  • Wolverine
  • Wombat
  • Woolly Mammoth
  • Woolly Monkey
  • Xerus
  • Yak
  • Yorkshire Terrier
  • Zebra
  • Zebu
  • Zonkey
  • Zorse

Mammals 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 14 punches the smallest known mammal on earth today is the Etruscan Shrew.

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