From Gracie the giraffe to kangaroos and antelopes, Texas has long been home to free-ranging exotic mammals.

Despite its name, the flying lemur isn’t a lemur and it doesn’t truly fly — it glides. These mysterious mammals, also called colugos, live in the rainforests of Southeast Asia and use a huge skin ...

Researchers reveal new insights into the complex evolutionary history behind the distinctive upright posture of modern placental and marsupial mammals, showing the transition was surprisingly complex ...

Door County is home to an amazing variety of animals, from butterflies drifting through summer meadows to mammals hidden in ...

Warm-bloodedness is a key trait of mammals, but it was long a mystery when proto-mammals evolved this feature to stand out from their more reptilian, cold-blooded ancestors. Now, in a new study ...

Over the past 100,000 years, Australia and New Guinea's large animal communities have been disrupted by extinctions and invasive species, altering entire ecosystems and threatening the conservation of ...

Mammals only have one life to live, but the length of that life varies greatly. While some shrews shuffle off this mortal coil in less than 14 months, bowhead whales can swim in Arctic waters for more ...

From the formation of inner ear bones to the rise of hair to cover our bodies, these developments made us distinct from other animals Riley Black | Science Correspondent By examining the fossils of ...

Mammals run hot. The ability to maintain an elevated, constant body temperature—known scientifically as endothermy and colloquially as warm-bloodedness—is a critical part of what has allowed these ...

Mammals, including humans, stand out with their distinctively upright posture, a key trait that fueled their spectacular evolutionary success. Yet, the earliest known ancestors of modern mammals more ...