Over 90% of Earth's volcanic activity occurs underwater, along mid-ocean ridges.

The ocean contains structures larger than mountain ranges.

Fact #1974 · Ocean

Many deep-sea fish have transparent or nearly invisible bodies.

Fact #1387 · Ocean

The lifetime odds of dying from drowning are about 1 in 1,000.

Fact #3021 · Ocean

In 1970, a whale carcass was blown up with explosives in Oregon to remove it from a beach.

Fact #793 · Ocean

Dumbo octopuses live at depths of 3,000–4,000 meters and are named for ear-like fins they use to swim.

Fact #5119 · Ocean

The Arctic Ocean is the smallest ocean.

Fact #141 · Ocean

Dolphins surf ocean waves purely for fun — one of the clearest signs of play behavior in animals.

Fact #5979 · Ocean

The Great Barrier Reef is located off the coast of Australia.

Fact #305 · Ocean