Many species of beetles have hardened wing covers called elytra.

A hippopotamus can hold its breath underwater for several minutes.

Fact #433 · Animals

Some species of penguins can swim at speeds of up to 15 miles per hour.

Fact #251 · Animals

Some spiders can glide through the air using silk.

Fact #369 · Animals

Male seahorses carry and give birth to their young.

Fact #359 · Animals

Some birds use tools to extract insects from wood.

Fact #416 · Animals

A tiger’s stripes are unique like human fingerprints.

Fact #468 · Animals

Some reptiles can survive long periods without food.

Fact #501 · Animals

Some species of bats use echolocation to hunt in darkness.

Fact #390 · Animals