Marine snow — a constant shower of organic debris — falls through the deep ocean like underwater snowfall.

Coral reefs cover less than 1% of the ocean floor but support about 25% of all marine species.

Fact #5113 · Ocean

Some whales sing songs that travel hundreds of miles underwater.

Fact #381 · Ocean

The Pacific Ocean contains thousands of islands.

Fact #200 · Ocean

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

Fact #242 · Ocean

Ancient oceans once covered much of Earth's surface.

Fact #705 · Ocean

The sailfish is among the fastest fish in the ocean.

Fact #397 · Ocean

The Earth's oceans cover more than 70% of the planet's surface.

Fact #220 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #2192 · Ocean