Mammals
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.
The Bowhead Whale Survives Icy Waters and Killer Whale Attacks
Why Are Orcas Attacking Boats? Experts Weigh In
Leopard Seals Are Apex Predators of the Antarctic
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)
Why Grolar Bear Numbers Increase With Climate Change
The Most Dangerous Bear and 9 Others to Give a Wide Berth
Alaska's Kodiak Bear Is One of the Planet's Biggest
Sable Animal Fur Belongs on Sables, Not on Clothes
The World's Most Dangerous Cat and 14 Other Fierce Felines
Is the Liger a Real Animal or Just a 'Napoleon Dynamite' Gag?
Eland Looks Like a Muscular Cow With Thick, Twisted Horns
The Mule Outperforms Both Its Horse Mom and Donkey Dad
Cape Buffalo Are Intensely Protective Herbivores
The Happiest Animal on Earth Is the Quokka
What Do Possums Eat? Most Things, It Turns Out
What's It Like Inside a Kangaroo's Pouch?
The Tarsier Is One Weird Primate, and Yes, We're Related
Marmosets Are Tiny, Upper Canopy-dwelling Monkeys
Why Do Gorillas Beat Their Chests?
The Naked Mole Rat Exhibits Hive Behavior, Lives Up to 30 Years
Squirrels Can Be Left- or Right-handed
Rat vs. Mouse Identification: Which Is Eating Your Cheese?
What Is the Biggest Cat in the World? Top 9 Species in the Wild
Cheetah vs. Leopard: Can You Spot the Differences?
Bunny vs. Rabbit: Is There a Difference?
Learn More / Page 14
Wallabies and kangaroos may look alike, but they're not identical marsupials. We'll tell you how to determine which is which.
The bobcat and lynx may not be much larger than the house cat lounging on your couch, but these felines rely on specific adaptations to survive in the wild.
Never wish a jockey good luck by saying "break a leg." Horses with broken legs might face a grim future, but does that mean they must be euthanized?
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As much as human beings have encroached on wildlife over recent decades, there are still several species of big cats living wild in the U.S. today.