Scientifically-speaking there are 11 mammal groups, and most Mammals are warm-blooded, have body hair, give live birth and nurse their young with milk from mammary glands. Check out these articles about all kinds of mammals.
Leopard Seals Are Apex Predators of the Antarctic
Humpback Whales Have Made an Amazing Comeback From Extinction
9 Enormous Facts About Sperm Whales, Gigantic Creatures of the Sea
The Largest Bat in the World Has a Wingspan Over 5 Feet
Baby Bats Babble With Moms, Hinting at Human Language Development
Fruit Bats Are the Best Pollinators (and Suppliers of Tequila)
Alaska's Kodiak Bear Is One of the Planet's Biggest
What's the Difference Between a Brown Bear and a Black Bear?
How Polar Bears Work
Gray Wolves Will Get Federal Protection Again in Much of U.S.
The Serval Stands Tall and Jumps Like A Champion
Are Dingoes Dangerous (and Did One Really Eat a Baby)?
Bison vs. Buffalo: What's the Difference?
Lamb vs. Sheep: Do You Know the Difference?
Dik-dik: The Tiny Antelope With the Embarrassing Name
What Do Possums Eat? Most Things, It Turns Out
What's It Like Inside a Kangaroo's Pouch?
Do Kangaroos Really Box?
The Tarsier Is One Weird Primate, and Yes, We're Related
Marmosets Are Tiny, Upper Canopy-dwelling Monkeys
Why Do Gorillas Beat Their Chests?
Rat vs. Mouse Identification: Which Is Eating Your Cheese?
Chipmunk vs. Squirrel Sizes, Habitats and Characteristics
How Long Do Squirrels Live?
Cheetah vs. Leopard: Can You Spot the Differences?
Bunny vs. Rabbit: Is There a Difference?
Coyote vs. Wolf: Differences in Size, Habitat and Behavior
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In a surprising way, the Southeast Asian mammal, AKA the bearcat, creates a chemical compound shared with roasty, toasty human food, according to a new study.
Feral monkeys have roamed Silver Springs State Park in Florida since the 1930s.
As the climate changes, some pika populations may die out, but others will flourish. A new study examined what's likely to happen in eight U.S. National Parks.
Motion-sensing cameras, detailed maps and a special poop-detecting dog all played a part in finding the jaguar nicknamed "El Jefe."
What do bats have in common with ice skaters and one-legged ducks? The answer to that helped illuminate one perplexing thing about the flying mammals.
Breaking multiple records, Sarah set speeds never matched by any other animal. She was euthanized earlier this week by the staff at the Cincinnati Zoo, where she lived.
Groups of European bison make movement and grazing decisions by popular vote, choosing to follow or ignore potential leaders' suggestions.
Pop culture has depicted chimps and other primates as both gun-wielding villains and saviors, but should humans be concerned about the possibility of armed apes?
Bats can spread deadly human diseases. Join Lauren as she interviews a virologist about the powerful immune systems of these fascinating creatures of the night.
Ah, the duckbill platypus: the creature so strange it's said to be cobbled together from a bin of spare animal parts. With its odd appearance -- and even odder abilities -- it's no surprise the creature was once dismissed as an elaborate hoax.
Like most mammals, this female gorilla has four limbs and a strong skull to protect its large brain. As well, its thoracic cavity contains a four chambered heart and a pair of lungs.
Like other marmots is alpine marmots are social creatures found in groups of ten to fifteen. But the population of marmots is declining due to the spread of agriculture.
Also called packrat, the bushy-tailed woodrat has a habit of stealing shiny objects to add to its den of sticks, bones is and vegetation. In this guide, you'll learn all about the packrat including it's habitat is and conservation status.
Named after U.S. zoologist W.H. Dall, dall Sheep is an agile creature is also called the white sheep.
Ibex have been hunted as trophies and for meat and medicinal purposes. As a result, these creatures, classified as bovidae, now face habitat loss.
Like many animals in the wild, the Aoudad, is currently vulnerable to extinction. This is primarly due to hunting and habitat loss.