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.
Urban coyotes have a fierce and formidable reputation as midnight predators, but coexistence with humans is possible.
Naked mole rats are famous for their longevity, but they also don't age like the rest of us do.
Some people mistakenly believe that if chimps are socialized from an early age, they're not a threat to humans. But these five families found out the hard way that chimps will always be chimps.
Why do squirrels exhibit behavior that can get them killed by cars? And how can you avoid them?
The first new rat species found in the Solomon Islands in 80 years has been uncovered. But due to deforestation of its habitat, very few may still exist.
A new study, along with previous research, suggests squirrels use mnemonic strategies to remember where they put the good nuts.
Today, horses have one huge toe on each leg — but they weren't always that way. Why the single digit now?
Due to a quirk in their anatomy, injured hedgehogs can experience skin inflating to the size of a basketball, which can be a painful and life-threatening development.
Thanks to the excesses of narcoterrorist Pablo Escobar, Colombian waterways now house a population of these invasive African giants.
Sure, these mammals may be cute and cuddly. But that doesn't mean their bite can't pack a punch.
By frightening top predators, the fear of humans may be distorting ecosystem processes even more than previously imagined.
A new scientific study reveals that the smells unique to meerkat communities aren't produced by the meerkats themselves.
A new genetic analysis clarifies the evolutionary relationships between five modern and extinct elephant species.
Despite our best efforts at eradicating them, rats keep outsmarting us. Here's how.
We've learned that young orangutans nurse for much longer than any other mammal, knowledge which could help conservation efforts.
It's the first evidence researchers have of the whales using their "unicorn horns" to capture prey.
Humans may not be the only animals that dig a soothing whiff of lavender oil.
Deprived of oxygen, naked mole rats can alter their metabolic functions to something less mammalian and more plantlike, burning fructose instead of glucose.
It's like the movie "Groundhog Day" every April, but with hibernation, a smaller rodent and way more hormones.
Officials are building bridges and underpasses to help animals safely cross busy roadways, which keeps the motorists and crossing creatures out of harm's way.
Scientists hope to eliminate need for tagging, extend system to other wild animals.
The two elephants studied even went some days without sleeping at all.
Rhino herds defecate in giant, shared dung piles called midden, then they stick their noses in the stuff. Here's why.
The feral pig population in the U.S. is a growing issue in nearly 40 states. The USDA hopes to wipe out the billion-dollar problem within a decade.
Each year, hundreds of healthy whales end up stranded on beaches, and scientists are investigating what could be behind the phenomenon.