Over 500 active volcanoes exist on Earth — most are underwater along mid-ocean ridges.

Deep-sea creatures often grow slowly due to limited food availability.

Fact #1400 · Ocean

Coral reefs are expected to decline by 70–90% if global temperatures rise 1.5°C above pre-industrial levels.

Fact #5233 · Ocean

Sea turtles have existed for over 100 million years.

Fact #1286 · Ocean

Certain fish can survive in oxygen-poor water.

Fact #453 · Ocean

Certain fish can produce their own light through bioluminescence.

Fact #372 · Ocean

The Arctic Ocean may be ice-free in summer within decades, creating new shipping routes and accelerating warming.

Fact #5218 · Ocean

The vampire squid feeds primarily on marine snow.

Fact #1420 · Ocean

Some whales sing songs that travel hundreds of miles underwater.

Fact #381 · Ocean