Some species of deep-sea fish produce their own light through bioluminescence.

Some whales sing songs that travel hundreds of miles underwater.

Fact #381 · Ocean

Certain fish can inflate their bodies to appear larger.

Fact #554 · Ocean

Some whales communicate across vast distances underwater.

Fact #228 · Ocean

The Great Barrier Reef has experienced multiple mass bleaching events since 1998 as sea temperatures rise.

Fact #5201 · Ocean

Rubber ducks accidentally became global ocean research tools when 29,000 of them spilled into the Pacific in 1992.

Fact #5738 · Ocean

The deepest part of the ocean is approximately 35,876 feet down.

Fact #2590 · Ocean

Tsunamis can travel across entire ocean basins.

Fact #830 · Ocean

Sharks predate trees by about 90 million years — they've been swimming Earth's oceans for 450 million years.

Fact #5120 · Ocean