Pistol shrimp colonies produce so much noise that submarines use them for acoustic concealment.

The Channel Tunnel required underwater tunneling through chalk marl.

Fact #1536 · Ocean

Jellyfish have existed for hundreds of millions of years.

Fact #117 · Ocean

Octopuses can open jars to access food inside.

Fact #1298 · Ocean

The Pacific Ocean is the deepest ocean on Earth.

Fact #337 · Ocean

A polar bear's sense of smell can detect seals from over a kilometer away.

Fact #1240 · Ocean

The U.S. once detonated nuclear weapons underwater near its own ships for testing.

Fact #2758 · Ocean

A newborn blue whale gains about 200 pounds per day in its first year.

Fact #3662 · Ocean

The highest recorded ocean wave exceeded 80 feet in height.

Fact #920 · Ocean