Deep-sea pressure at the Mariana Trench is over 1,000 times atmospheric pressure at sea level.

The ocean contains dissolved gold — approximately 20 million tons — but in concentrations too low to extract profitably.

The ocean contains structures larger than mountain ranges.

Trilobites lived in ancient oceans long before dinosaurs.

There is a river in the ocean — the Gulf Stream moves more water than all of Earth's rivers combined.

The deepest part of the ocean could submerge Mount Everest.

The anglerfish uses a bioluminescent lure to attract prey in the dark ocean depths.

Coral reefs cover less than 1% of the ocean floor but support about 25% of all marine species.

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