Arctic terns make the longest migration of any animal — from the Arctic to Antarctica and back each year.

A peacock spreads its tail feathers during courtship displays.

Fact #466 · Animals

Certain owls hunt silently because of specialized feather structures.

Fact #542 · Animals

Certain birds build nests on cliffs for protection.

Fact #531 · Animals

Some species of crabs can regenerate lost claws.

Fact #396 · Animals

Elephants have one of the longest gestation periods of any land animal.

Fact #386 · Animals

Some sharks detect electrical signals from other animals.

Fact #128 · Animals

A toucan’s beak is lightweight despite its size.

Fact #526 · Animals

Some reptiles can survive long periods without food.

Fact #501 · Animals