Sea foam is produced when dissolved organic matter in the ocean is agitated by waves and wind.

Some species of nudibranch (sea slug) incorporate stinging cells from jellyfish into their own bodies for defense.

Fact #5126 · Ocean

Sharks predate trees by about 90 million years — they've been swimming Earth's oceans for 450 million years.

Fact #5120 · Ocean

Some prehistoric marine reptiles hunted in ancient oceans.

Fact #686 · Ocean

Some deep-sea species have extremely slow metabolisms.

Fact #1403 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #2089 · Ocean

Clams have been found alive at the bottom of the Mariana Trench.

Fact #5140 · Ocean

The giant amphipod thrives in extreme ocean depths.

Fact #1421 · Ocean

A sea anemone uses stinging cells to capture prey.

Fact #437 · Ocean