The chambered nautilus has remained virtually unchanged for over 500 million years.

Penguins use their flippers to propel themselves underwater.

Fact #1238 · Ocean

Some coral reefs are visible from space.

Fact #197 · Ocean

Some whales sing songs that travel hundreds of miles underwater.

Fact #381 · Ocean

Heart disease is the leading cause of death globally.

Fact #2828 · Ocean

The Pacific Ocean is deeper than Mount Everest is tall.

Fact #258 · Ocean

Some deserts were once oceans.

Fact #2661 · Ocean

Some deep-sea jellyfish emit flashes of light when disturbed.

Fact #1396 · Ocean

Some species of octopus can change both color and texture.

Fact #343 · Ocean