Some seals can sleep underwater by surfacing periodically.

Octopuses solve mazes.

Fact #2571 · Ocean

Vaccination campaigns have eliminated several diseases in many regions.

Fact #1224 · Ocean

Some species of octopus can change both color and texture.

Fact #343 · Ocean

The Great Barrier Reef is home to thousands of marine species.

Fact #76 · Ocean

The Dead Sea lies at one of the lowest elevations on land.

Fact #50 · Ocean

The Pacific Ocean is deeper on average than other oceans.

Fact #226 · Ocean

The immortal jellyfish is the only known animal capable of reverting to its juvenile form repeatedly.

Fact #3845 · Ocean

Penguins use their flippers to propel themselves underwater.

Fact #1238 · Ocean