Giant ground sloths (Megatherium) weighed as much as an elephant and stood 6 meters tall on their hind legs.

Some insects undergo complete metamorphosis from larva to adult.

Fact #440 · Animals

A hedgehog rolls into a spiny ball when threatened.

Fact #555 · Animals

A hummingbird can hover in place while feeding.

Fact #484 · Animals

A toucan’s beak is lightweight despite its size.

Fact #526 · Animals

Some snakes can sense heat using specialized pits.

Fact #408 · Animals

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

Fact #386 · Animals

Certain birds of prey have exceptionally sharp vision.

Fact #434 · Animals

Some reptiles can survive long periods without food.

Fact #501 · Animals