Hummingbirds are the only birds that can fly backward.

Certain species of frogs are active at night.

Fact #519 · Animals

A sea star can regrow lost arms.

Fact #425 · Animals

A polar bear's fur is actually transparent.

Fact #391 · Animals

A porcupine raises quills as a defense mechanism.

Fact #524 · Animals

Some insects undergo complete metamorphosis from larva to adult.

Fact #440 · Animals

A sea otter uses its chest as a surface for cracking shells.

Fact #530 · Animals

Some fish use tools to crack open shellfish.

Fact #405 · Animals

A camel can drink large amounts of water in a short time.

Fact #458 · Animals