Learn how emperor penguins adopt a complex choreography to form a huddle to stay warm in bitter Antarctic winds.

In a video taken by a SoCal hiker, a puma appears to stalk toward her while she yells, 'No! Go away!' until, finally, the cat ...

In the wild, unexpected encounters are a daily reality. But when a lion faces off against a giraffe, the results are nothing short of astonishing. These two mighty creatures, each a giant in its own ...

The most popular dog breeds have it all – from timeless classics to up-and-comers who are sure to soon be stealing the ...