The pistol shrimp's snap stuns prey with a combination of sound, shock wave, and cavitation.

Many species of beetles have hardened wing covers called elytra.

Fact #457 · Animals

Some snakes shed their skin multiple times a year.

Fact #485 · Animals

Blue whales can grow longer than 90 feet.

Fact #341 · Animals

A cuttlefish can rapidly change both color and pattern.

Fact #472 · Animals

Ravens can solve complex problems in experiments.

Fact #380 · Animals

Certain fish change sex during their lifetime.

Fact #503 · Animals

A walrus uses its tusks to haul itself onto ice.

Fact #536 · Animals

Some fish use tools to crack open shellfish.

Fact #405 · Animals