The lionfish invasion in the Atlantic, introduced by aquarium releases, has devastated native fish populations.

The deep-ocean zone below 1,000 m is called the midnight zone — no sunlight reaches it.

Fact #5138 · 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

The Dead Sea is 10 times saltier than the ocean.

Fact #3396 · Ocean

The ocean is, on average, 3,682 meters deep — the deepest point is about 11,000 meters.

Fact #5116 · Ocean

The North Pole has no land beneath it — it sits on sea ice floating over the Arctic Ocean.

Fact #4754 · Ocean

A sea turtle can navigate back to its birthplace decades later.

Fact #575 · Ocean

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

Fact #1383 · Ocean