Bioluminescence is estimated to occur in 76% of all ocean species.

Some fish can change color to blend with their surroundings.

Fact #392 · Ocean

The world's longest coral reef system, the Great Barrier Reef, is visible from space.

Fact #4773 · Ocean

Rubber ducks accidentally became global ocean research tools when 29,000 of them spilled into the Pacific in 1992.

Fact #5738 · Ocean

Deep-sea pressure at the Mariana Trench is over 1,000 times atmospheric pressure at sea level.

Fact #5128 · Ocean

The Pacific Ocean is the deepest ocean on Earth.

Fact #337 · Ocean

The ocean covers more than 70 percent of Earth's surface.

Fact #657 · Ocean

Deep-sea creatures often have bioluminescent organs for communication.

Fact #884 · Ocean

The deepest point in the ocean is deeper than Mount Everest is tall.

Fact #2621 · Ocean