The Great Barrier Reef is the only living thing visible from space.

Ancient oceans once covered much of Earth's surface.

Fact #705 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #1864 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #2068 · Ocean

Some fish can breathe air in certain conditions.

Fact #312 · Ocean

Water covers more than 70% of Earth's surface.

Fact #86 · Ocean

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

Fact #3021 · Ocean

The Dead Sea is so salty that nothing larger than bacteria can survive in it, and swimmers float effortlessly.

Fact #4257 · Ocean

Prehistoric coral reefs were similar to modern reefs.

Fact #707 · Ocean