Deep-sea fish like the barreleye have transparent heads and tubular eyes that can rotate to face upward.

A single coral colony can consist of thousands of tiny animals.

Fact #367 · Ocean

Sea cucumbers can expel internal organs as a defense mechanism.

Fact #350 · Ocean

Blue whales are the largest animals known to have ever lived.

Fact #246 · Ocean

The Great Barrier Reef supports thousands of marine species.

Fact #186 · Ocean

Sea otters use rocks consistently as tools.

Fact #1304 · Ocean

The deep-sea environment is near freezing in temperature.

Fact #1419 · Ocean

The giant squid can grow over 30 feet long.

Fact #1393 · Ocean

The snowshoe hare changes fur color with the seasons for camouflage.

Fact #871 · Ocean