Sea otters hold hands while sleeping so they don't drift apart.

Some deep-sea creatures produce their own light through bioluminescence.

Fact #1391 · Ocean

Octopuses can open jars to access food inside.

Fact #1298 · Ocean

Octopuses solve mazes.

Fact #2571 · Ocean

Some deserts were once oceans.

Fact #2661 · Ocean

In 1962, a U.S. submarine nearly launched a nuclear torpedo during the Cuban Missile Crisis.

Fact #788 · Ocean

Octopuses have demonstrated short-term and long-term memory.

Fact #1319 · Ocean

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

Fact #257 · Ocean

The Channel Tunnel required underwater tunneling through chalk marl.

Fact #1536 · Ocean