There is more water in Earth's mantle than in all the oceans on the surface.

Octopuses solve mazes.

Fact #2571 · Ocean

Roughly half of all humans who have ever lived died from infectious diseases.

Fact #2766 · Ocean

A single Google search uses enough energy to power a 60-watt lightbulb for 17 seconds.

Fact #3383 · Ocean

The Pacific Ocean covers nearly one-third of Earth's surface.

Fact #297 · Ocean

Prehistoric oceans had different currents than today.

Fact #740 · Ocean

Vaccination campaigns have eliminated several diseases in many regions.

Fact #1224 · Ocean

Sea otters hold hands while sleeping to avoid drifting apart.

Fact #364 · Ocean

Some volcanoes can erupt underwater.

Fact #2624 · Ocean