Bioluminescence — light from living organisms — is the most common form of communication in the deep ocean.

Octopuses can open jars to access food inside.

Fact #1298 · Ocean

More than 70% of Earth's oxygen is produced by marine plants, primarily phytoplankton.

Fact #3399 · Ocean

Bioluminescence is common among deep-sea organisms.

Fact #1418 · Ocean

The vampire squid feeds primarily on marine snow.

Fact #1420 · Ocean

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

Fact #657 · Ocean

A sea lion can dive hundreds of feet underwater.

Fact #482 · Ocean

The Ring of Fire surrounds much of the Pacific Ocean.

Fact #814 · Ocean

A whale shark is the largest fish in the ocean.

Fact #462 · Ocean