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.
How Often Do Whales Come Up for Air?
How Do Whales Sleep? They're Always Half Awake (Literally)
Are Whales Mammals? Yes, and They're Related to Hippos
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)
What Do Pandas Eat (Other Than Bamboo)?
Polar Bear vs. Grizzly Bear: Which Bear Is Bigger and Tougher?
The Biggest Bear Stands 5 Feet Tall on All Fours (Not Even on Its Hind Legs)
Mountain Lion vs. Bobcat: A Big Cat Showdown
Panther vs. Jaguar: Kind of Like Saying 'Apple vs. Granny Smith'
Siberian Tiger vs. Bengal Tiger: A Showdown of Big Cats
Hippo vs. Rhino: Who Comes Out on Top?
6 Types of Horses for Riding, Racing and Farm Work
Ram vs. Goat: Horns, Tails, Temperaments and More
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?
15 Types of Monkeys Climbing Trees All Around the World
What Do Gorillas Eat? How Are They Such Muscular Herbivores?
The Tarsier Is One Weird Primate, and Yes, We're Related
Woodchuck vs. Beaver Habitats, Behaviors, and Misidentification
Beaver vs. Groundhog: Brown Rodents With Very Different Homes
Is the Rat King Real or Simply an Urban Legend?
Gray Fox vs. Coyote: Comparing Canids of the Wild
Wolverine vs. Badger: An Intensely Scrappy Showdown
What Do Skunks Eat? Just About Anything They Find
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It turns out that bobcats do just fine if not actively hunted by humans.
The wars between mink species and humans quietly rage worldwide.
Though ol' Wile E. never did catch the Road Runner, coyotes are some of the most ingenious and adaptable animals on the planet.
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These impressive and intimidating animals have an illustrious past that helped them wend their way through America and settle in the heartland of the South.
By Mark Mancini
These berserker weasels are the ultimate cold weather survivors - cagey, smart and omnivorous.
Groundhogs don't actually make great weathermen, but they are pretty cool in every other respect.
Kinkajous, or honey bears, are generally docile creatures, but they definitely don't mix well with humans.
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Jackals, formidable members of the canine family, are often portrayed in traditional world folklore as wily tricksters, up to no good. They are actually brilliant survivalists.
These adorable marsupials look as sweet as their name. But what, exactly, are sugar gliders?
By Jamie Allen
Those red butts on baboons do serve a purpose, sort of, but it's probably not quite what you think.
Orphaned Bornean orangutans need all the help they can get - the Borneo Orangutan Survival Foundation steps in to teach them the art of survival.
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It's the job of the huge grizzly bears at Montana's Grizzly and Wolf Discovery Center to test the everything from coolers and trash cans to food storage containers.
Clearing land with goats rather than machinery is eco-friendly, effective and adorable.
Fisher cats aren't actually cats, but cat-sized members of the weasel family, and their favorite snack is - yikes - the porcupine.
Arguably the most charming rodent in the world, the capybara is also the largest.
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It is the largest animal ever to exist on the planet.
Despite being known as the "lesser panda," the red panda is so totally cute, we simply can't use that moniker. No way. Not now. Not ever.
The ocelot may look like a slightly wilder version of a domesticated tabby cat, but they are three times the size of house cats, much fiercer and, though abundant in some areas, still endangered.
These adorable little rodents are popular as pets, but they require some special care.
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It may seem like just the cutest thing in the world to you, but owning a pet monkey is a really bad idea. Here's why.
These little critters are super cute, so why do they have a reputation for being one of the worst of the mammal world?
By Mark Mancini
Llamas and alpacas are very similar animals, but the differences in personality are striking.
Because most of what we know about honey badgers comes from a three-minute comedy video, there are a lot of misconceptions about these wily weasels.
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Sure, hedgehogs are cute as heck, but do you think one really wants to live in your house?
There doesn't seem to be much of a gray area. Most people are a hard yes or yard no.
By Meg Sparwath