Decorator crabs attach sponges, algae, and other organisms to their shells as camouflage.

A sea lion can dive hundreds of feet underwater.

Fact #482 · Ocean

Certain dolphins cooperate to herd fish in coordinated groups.

Fact #1301 · Ocean

The Earth's oceans absorb large amounts of carbon dioxide.

Fact #242 · Ocean

The Arctic Ocean is the smallest ocean.

Fact #141 · Ocean

Sea otters hold hands while sleeping so they don't drift apart.

Fact #3229 · Ocean

The Great Barrier Reef is the largest coral reef system in the world.

Fact #13 · Ocean

Male seahorses carry and give birth to the young — the only male animal known to experience true pregnancy.

Fact #3527 · Ocean

Some dolphins sleep with one half of their brain at a time.

Fact #564 · Ocean