The Great Barrier Reef has experienced 5 mass bleaching events since 1998.

Some fish can survive in near-freezing water.

Fact #385 · Ocean

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

Fact #5979 · Ocean

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

Fact #4774 · Ocean

A whale shark is the largest fish in the ocean.

Fact #462 · Ocean

The Pacific Ocean contains numerous coral atolls.

Fact #315 · Ocean

Some fish can tolerate extremely salty environments.

Fact #881 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #2123 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #1974 · Ocean