Most of us know to give bears a wide berth in the wild. But there are gentler wild animals, even prey, that can get very aggressive in the wrong situations.

One man tries to ride a mustang who wants no part of him. There’s a hair-raising moment when the horse seems to lose his balance and fall backwards. If he did, it would be on top of the human. The ...

DNA shines a light back into the past, showing us things that fossils can't. But how far back can that light extend? Some of the oldest DNA sequences come from mastodon and polar bear fossils about 50 ...

As the sun began to sink over the grasslands of central Mongolia, a herd of stocky, dun-colored horses emerged from a rocky outcrop on a slope where they had been sheltering from the blazing heat of a ...