Some sharks must keep swimming to breathe — if they stop moving, they suffocate.

Some beetles can lift objects many times their own weight.

Fact #378 · Animals

Some species of crabs can regenerate lost claws.

Fact #396 · Animals

A kangaroo cannot walk backward easily.

Fact #375 · Animals

Dolphins use echolocation to navigate and hunt underwater.

Fact #12 · Animals

Certain octopus species are known for their intelligence.

Fact #495 · Animals

The platypus is one of the few mammals that lay eggs.

Fact #382 · Animals

Some birds sing complex songs to mark territory.

Fact #517 · Animals

Many birds use Earth's magnetic field for navigation.

Fact #388 · Animals