Dolphins use signature whistles that function like names.

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

Fact #1385 · Ocean

Certain species of octopus are known to use coconut shells as shelter.

Fact #410 · Ocean

Whales are mammals and must breathe air.

Fact #265 · Ocean

Dogs can detect certain diseases through scent.

Fact #1343 · Ocean

A sea otter uses its chest as a surface for cracking shells.

Fact #530 · Ocean

Public health sanitation reforms reduced disease outbreaks.

Fact #1210 · Ocean

The deepest ocean trench is the Mariana Trench.

Fact #907 · Ocean

The Pacific Ocean is home to the Mariana Trench.

Fact #276 · Ocean