The praying mantis is the only insect known to have a single ear, located on the underside of its belly.

An ostrich's eye is larger than its brain.

Fact #349 · Animals

A king cobra can raise a third of its body off the ground.

Fact #421 · Animals

A hippopotamus can hold its breath underwater for several minutes.

Fact #433 · Animals

A group of wolves is called a pack.

Fact #112 · Animals

Certain owls hunt silently because of specialized feather structures.

Fact #542 · Animals

Some birds can mimic human speech.

Fact #268 · Animals

A koala sleeps for many hours each day.

Fact #490 · Animals

Some birds migrate between hemispheres each year.

Fact #203 · Animals