Coral reefs are built by tiny animals called coral polyps.

The Pacific Ocean is larger than all the Earth's landmasses combined.

Fact #3394 · Ocean

Only about 5% of the ocean has been explored by humans.

Fact #2776 · Ocean

The Arctic fox changes fur color with the seasons.

Fact #373 · Ocean

Blue whales are the largest animals known to have ever lived.

Fact #246 · Ocean

A hippopotamus can hold its breath underwater for several minutes.

Fact #433 · Ocean

Dolphins use signature whistles that function like names.

Fact #1313 · Ocean

In 1970, a whale carcass was blown up with explosives in Oregon to remove it from a beach.

Fact #793 · Ocean

A single Google search uses enough energy to power a 60-watt lightbulb for 17 seconds.

Fact #3383 · Ocean