Mammals
Warm-blooded vertebrates with fur or hair that nurse their young with milk, ranging from tiny shrews to the blue whale.

Aardvark
Orycteropus afer
MammalThe aardvark is a nocturnal, burrowing mammal found across sub-Saharan Africa, best known for its long snout and powerful digging claws used to raid termite mounds.

African Elephant
Loxodonta africana
MammalThe African elephant is the largest living land animal, roaming savannas, forests, and deserts across sub-Saharan Africa in tightly-bonded matriarchal herds.

Bald Uakari
Cacajao calvus
MammalThe bald uakari is a small Amazonian monkey best known for its strikingly bare, bright red face, found in seasonally-flooded forests along the Amazon and its tributaries.

Bengal Tiger
Panthera tigris tigris
MammalThe Bengal tiger is the most numerous tiger subspecies, primarily found in India, and is the largest wild cat native to Asia's forests, mangroves, and grasslands.

Blue Whale
Balaenoptera musculus
MammalThe blue whale is the largest animal known to have ever existed, filtering enormous quantities of tiny krill from the ocean through baleen plates as it roams every ocean except the Arctic.

Bornean Orangutan
Pongo pygmaeus
MammalThe Bornean orangutan is a critically-endangered great ape found only on the island of Borneo, spending nearly its entire life moving through the rainforest canopy.

Bottlenose Dolphin
Tursiops truncatus
MammalThe bottlenose dolphin is one of the most widely-recognized and intelligent marine mammals, found in temperate and tropical oceans worldwide.

Cheetah
Acinonyx jubatus
MammalThe cheetah is the fastest land animal on Earth, built for explosive short sprints across the open grasslands and semi-desert of Africa.

Common Vampire Bat
Desmodus rotundus
MammalThe common vampire bat is one of only three bat species that feeds exclusively on blood, mainly targeting livestock across Latin America under cover of darkness.

Dromedary Camel
Camelus dromedarius
MammalThe dromedary, or one-humped camel, is a large desert mammal domesticated thousands of years ago and superbly adapted to surviving extreme heat and long stretches without water.

Fennec Fox
Vulpes zerda
MammalThe fennec fox is the smallest fox species in the world, adapted to the extreme heat of the Sahara Desert with famously oversized ears.

Giant Panda
Ailuropoda melanoleuca
MammalThe giant panda is a bear native to the mountain forests of central China, famous for a diet made up almost entirely of bamboo despite a digestive system built for meat.

Gray Wolf
Canis lupus
MammalThe gray wolf is the largest wild member of the dog family, once ranging across nearly the entire Northern Hemisphere and living in tightly-coordinated family packs.

Hippopotamus
Hippopotamus amphibius
MammalThe hippopotamus is one of the largest land mammals, spending most of the day submerged in African rivers and lakes to keep its huge body cool.

Impala
Aepyceros melampus
MammalThe impala is a medium-sized antelope found across eastern and southern African savannas, famous for its explosive leaping ability when startled.

Jaguar
Panthera onca
MammalThe jaguar is the largest big cat in the Americas and the only living member of the genus Panthera found in the New World, prowling the rainforests of Central and South America.

Koala
Phascolarctos cinereus
MammalThe koala is a tree-dwelling marsupial native to Australia, spending nearly its entire life in eucalyptus trees on a diet that would be toxic to most other mammals.

Lion
Panthera leo
MammalThe lion is one of the world's most recognizable big cats, known as the 'king of the jungle' despite living mainly on open savanna, and is the only cat species that lives in large social groups called prides.

Mountain Gorilla
Gorilla beringei beringei
MammalThe mountain gorilla is a critically-studied great ape subspecies living in the misty forested slopes of the Virunga Mountains and Bwindi in central Africa, and one of conservation's most notable recovery stories.

Narwhal
Monodon monoceros
MammalThe narwhal is an Arctic whale famous for the male's long spiraled tusk, which is actually an enormous protruding canine tooth, earning it the nickname 'unicorn of the sea'.

Plains Zebra
Equus quagga
MammalThe plains zebra is the most common and widespread zebra species, roaming the grasslands of eastern and southern Africa in large, ever-shifting herds.

Polar Bear
Ursus maritimus
MammalThe polar bear is the largest land carnivore on Earth, superbly adapted to hunting seals across the sea ice of the Arctic Circle.

Quokka
Setonix brachyurus
MammalThe quokka is a small wallaby found almost exclusively on a handful of islands off Western Australia, widely nicknamed 'the world's happiest animal' for its permanent smile-like expression.

Red Panda
Ailurus fulgens
MammalThe red panda is a small, tree-dwelling mammal native to the temperate forests of the eastern Himalayas, unrelated to the giant panda despite the shared name and bamboo diet.

Sea Otter
Enhydra lutris
MammalThe sea otter is the heaviest member of the weasel family and one of the few mammals known to use tools, cracking open shellfish with rocks while floating on its back.

Snow Leopard
Panthera uncia
MammalThe snow leopard is an elusive big cat adapted to life in the high, cold mountains of Central and South Asia, so rarely seen it's often called the 'ghost of the mountains'.

Urial
Ovis vignei
MammalThe urial is a wild sheep species native to the dry hills and mountains of Central and South Asia, recognized by the male's large curling horns.

Walrus
Odobenus rosmarus
MammalThe walrus is a massive Arctic marine mammal easily identified by its long ivory tusks, thick blubber layer, and distinctive whiskered snout.

Xerus (African Ground Squirrel)
Xerus inauris
MammalThe Cape ground squirrel, or xerus, is a burrowing rodent of southern Africa's arid plains, easily recognized by holding its bushy tail overhead like a built-in parasol.

Yak
Bos grunniens
MammalThe yak is a large, long-haired bovine adapted to the extreme cold and thin air of the high Himalayan plateau, long domesticated as a vital pack animal.

Yellow-bellied Marmot
Marmota flaviventris
MammalThe yellow-bellied marmot is a large ground squirrel found in the mountains of western North America, spending nearly eight months of the year in deep hibernation.
Mammals FAQs
How many mammals are listed here?
This page currently features 31 species, and more are added regularly as the dataset grows.
What is the most popular animal in this list?
Lion is currently the most popular animal in Mammals.
Are any of these animals endangered?
Yes — 19 of the 31 species listed are classified as vulnerable, endangered, or critically endangered.
Explore Other Categories
Birds
Feathered, egg-laying vertebrates found on every continent, from flightless penguins to long-distance migratory raptors.
Fish
Gilled, water-dwelling vertebrates spanning freshwater rivers to the deep ocean, from tiny minnows to whale sharks.
Reptiles
Cold-blooded, scaled vertebrates including snakes, lizards, turtles, and crocodilians found on every continent but Antarctica.
Amphibians
Cold-blooded vertebrates that typically begin life in water and move to land, including frogs, toads, and salamanders.
Insects
The most diverse animal group on Earth, six-legged invertebrates found in nearly every habitat on the planet.
Marine Animals
Animals adapted to life in the ocean, spanning mammals, fish, and invertebrates that call the sea home.
Dinosaurs
Prehistoric reptiles that dominated life on land for over 160 million years before going extinct roughly 66 million years ago.