Bioluminescence allows some deep-sea creatures to produce light.

The compass improved navigation at sea.

Fact #1551 · Ocean

A sea turtle can navigate back to its birthplace decades later.

Fact #575 · Ocean

The vampire squid can turn itself inside out as a defense mechanism.

Fact #1385 · Ocean

The Earth's crust is thinner beneath oceans.

Fact #264 · Ocean

Public health sanitation reforms reduced disease outbreaks.

Fact #1210 · Ocean

Some bacteria can survive in extreme environments such as deep-sea vents.

Fact #257 · Ocean

A dolphin’s brain is relatively large compared to its body size.

Fact #456 · Ocean

There are places in the ocean where pressure is over 1,000 times greater than at sea level.

Fact #2486 · Ocean