29,000 rubber ducks spilled into the Pacific in 1992 have since become global ocean current trackers.

A sea lion can hold its breath for several minutes underwater.

Fact #400 · Ocean

Sea horses swim upright rather than horizontally.

Fact #446 · Ocean

The deepest ocean trench is the Mariana Trench.

Fact #907 · Ocean

Dolphins call each other by unique names.

Fact #2569 · Ocean

The deep-sea environment is near freezing in temperature.

Fact #1419 · Ocean

The mimic octopus can impersonate over 15 different marine species.

Fact #3240 · Ocean

A whale shark is the largest fish in the ocean.

Fact #462 · Ocean

The Earth's crust is thinner beneath oceans.

Fact #127 · Ocean