When you think of animals that build nests, your mind likely travels to birds. However, while it is true that birds are one ...

It's not easy finding food at sea. Seabirds often stay aloft, scanning the churning waters for elusive prey. Most seabirds ...

In all species, cardiovascular fitness is a sign of good health. For these little flyers, endurance comes most naturally.

Discover the world's most endangered dog breeds, their unique traits, and why these rare canines are on the brink of ...