The deepest part of the ocean is approximately 35,876 feet down.

The mimic octopus can imitate other sea creatures.

Fact #355 · Ocean

The Caspian Sea is the world's largest inland body of water and is classified as a lake despite its salt water.

Fact #3759 · Ocean

The Cambrian period introduced many early marine animals.

Fact #746 · Ocean

The Great Barrier Reef is the largest coral reef system in the world.

Fact #13 · Ocean

A sea lion can dive hundreds of feet underwater.

Fact #482 · Ocean

Certain marine animals use camouflage to blend into coral reefs.

Fact #487 · Ocean

Octopuses have rectangular pupils that give them nearly 360-degree vision.

Fact #3844 · Ocean

Some deserts were once oceans.

Fact #2661 · Ocean