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.
Animals may not have access to spice racks, but does that mean they don't enjoy flavorful meals? Have Japanese monkeys discovered the joy of cooking, or is this a culinary myth?
Plagued by negative images and slanderous tales, wolves could use the help of a good publicist. Will positive news like wolves help strengthen the ecosystem override age-old fears and misconceptions?
What's a full moon without the howl of a wolf echoing in the background? Are wolves really howling at the moon or just talking among themselves?
Wolves are wild predators and could kill your beloved Fido for a tasty meal. But will these animals come after you, or do they prefer a drama-free neighborhood?
The leader of the pack doesn't always lead a doomed existence like in the Shangri-Las song. A wolf pack's leader and other members follow defined roles, creating a strong, devoted group.
Wolves may be a close relative of man's best friend, but we wouldn't recommend trying to befriend these wild canines. Check out this wolf image gallery to learn all about different wolf species and their habits.
This big cat image gallery shows you a wide variety of these carnivorous felines. From the well known tiger and lion to the lesser known serval and margay, learn about these big cats and their relatives.
Though some things aren't always black and white, zebras remain the exception. These animals are known for their classic colors, but are zebras black with white stripes or white with black?
A good portion of a giraffe's height comes from its statuesque neck. But how do these lanky creatures get their necks in such pretzel-like positions?
The king of the jungle has been known to salivate at the sight of a tasty human. But are these stories of lions wreaking havoc on people in Africa true?
Any animal that can go from zero to 40 mph in three strides must have a very specialized body. Why can cheetahs run so fast, and how does their ability make them vulnerable?
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 stare down the barrel of a shotgun?
If you can get past a koala's pungent scent of urine and mating-musk, you might detect a faint hint of cough drops. Why do koalas smell like they'd clear out your sinuses?
Dog shows aren't the only places you'll hear barking and clapping. Seals and sea lions welcome beachgoers with their uproarious get-togethers. But how do you tell the difference between the two?
They call the creature a bear. And bears are known to hibernate each winter. So why don't pandas slip into the same cold-weather stupor? Are they really even bears at all?
Dolphins and war? That seems like an unfortunate pairing. But the U.S. Navy has been training the gregarious sea creatures to spot sea mines since the 1960s. Are they good at it?
Some people call orcas the wolves of the sea, yet others want to swim with them. Why are these animals known as killers -- or are they just getting a bad rap?
If your favorite diner's blue plate special is ever sauteed polar bear liver, you may want to stick with salad. This meal can cause symptoms far beyond indigestion.
Environmentalists agree that beaver dams help the environment by creating wetlands but why are some landowners and farm owners getting riled up? How could these dams be hazardous to roads, bridges and levees?
Bushy mustaches like the ones that Magnum P.I. or Super Mario sport are a bold fashion statement. But for baleen whales, they never go out of style.
If you've seen Disney's "The Lion King" or HowStuffWorks's "Meerkat Manor," you're familiar with the celebrity meerkats. And whether your favorite is the animated Timon or one of the reality TV families, it's hard not to fall for these small mammals.
Tigers, the largest members of the cat family, live in the forests, savannas and swamps in Asia. See pictures of these great feline carnivores, including the Bengal tiger, Sumatran tiger and more.
She's a vicious social climber, willing to do anything to get to the top. In her quest to be queen, she's snubbed girls and stolen their men. Oh, yes -- and she's a meerkat.
Young meerkat pups pass their days in the Kalahari Desert by playing. But it's not all fun and games: Playtime makes them vulnerable to predators. So why persist?
When it comes to lending a helping paw, meerkats are quite altruistic. Strangely, they evolved from the mongoose -- a real loner. What gives?