A hedgehog rolls into a spiny ball when threatened.

Certain fish clean parasites off larger fish.

Fact #523 · Animals

Certain fish form schools to reduce predation risk.

Fact #479 · Animals

A cheetah can accelerate from 0 to 60 mph in a few seconds.

Fact #363 · Animals

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

Fact #386 · Animals

Bats are the only mammals capable of sustained flight.

Fact #58 · Animals

Certain fish clean parasites from larger fish.

Fact #422 · Animals

Some species of jellyfish glow in the dark.

Fact #357 · Animals

A group of wolves is called a pack.

Fact #112 · Animals