When the peaks of the Sangre de Cristo mountains become snowcapped, a flurry of bird adaptations sweeps across the foothills.

Tens of millions of years ago, a diverse array of bird species soared, swam, and thrived amid their scaly reptile cousins—and ...

She approached chimps as she did people: on their own terms. By Sam Anderson ...

So, how do the animals that live in snowy landscapes adapt to survive freezing temperatures? From furry noses to group hugs, here are a few of the ingenious ways they stay warm an ...