Marine iguanas in the Galapagos are the only ocean-going lizards in the world.

Ancient oceans once covered much of Earth's surface.

Fact #705 · Ocean

Some deep‑sea fish create their own light.

Fact #2475 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #1805 · Ocean

A sea anemone uses stinging cells to capture prey.

Fact #437 · Ocean

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

Fact #5104 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #1784 · Ocean

Some whales can hold their breath for over an hour.

Fact #179 · Ocean

The deep-ocean zone below 1,000 m is called the midnight zone — no sunlight reaches it.

Fact #5138 · Ocean