Dolphins have names for each other — they use unique whistles to address individuals.

The anglerfish uses a bioluminescent lure to attract prey in the dark ocean depths.

Fact #1383 · Ocean

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

Fact #3527 · Ocean

The Earth's tilt causes seasonal changes.

Fact #144 · Ocean

The immortal jellyfish is the only known animal capable of reverting to its juvenile form repeatedly.

Fact #3845 · Ocean

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

Fact #13 · Ocean

The largest animal ever known to exist is the blue whale.

Fact #914 · Ocean

Sea horses swim upright rather than horizontally.

Fact #446 · Ocean

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

Fact #367 · Ocean