A chameleon's tongue can extend to roughly twice its body length and strikes prey in as little as 0.07 seconds.

Some birds can sleep while flying.

Fact #332 · Animals

Elephants communicate using low-frequency sounds.

Fact #51 · Animals

Certain fish change sex during their lifetime.

Fact #503 · Animals

Some animals use camouflage to avoid predators.

Fact #336 · Animals

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

Fact #382 · Animals

Clownfish can change sex during their lifetime.

Fact #361 · Animals

The Earth's surface is constantly reshaped by natural forces.

Fact #224 · Animals

Some species of jellyfish can shrink and regrow their bodies.

Fact #428 · Animals