Some fish can breathe air in certain conditions.

The ocean contains structures larger than mountain ranges.

The Dead Sea is so salty that nothing larger than bacteria can survive in it, and swimmers float effortlessly.

Tsunamis can travel across entire ocean basins.

Coral spawning events, triggered by moon phase and water temperature, release billions of eggs in a single night.

The Mediterranean Sea loses more water to evaporation than it gains from rivers, maintained by inflow from the Atlantic.

The deep ocean is the largest habitat on Earth.

Somewhere between 50% and 80% of earth's living organisms are in the ocean.

The Pacific Ocean is home to the Mariana Trench.