Some whales sing songs that travel hundreds of miles underwater.

The Earth's oceans absorb large amounts of carbon dioxide.

Fact #242 · Ocean

There are more atoms in a glass of water than glasses of water in Earth's oceans.

Fact #2617 · Ocean

Glacial periods caused sea levels to drop significantly.

Fact #748 · Ocean

A blue-ringed octopus carries venom potent enough to affect humans.

Fact #370 · Ocean

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

Fact #575 · Ocean

Some deep‑sea fish create their own light.

Fact #2475 · Ocean

Some volcanoes can erupt underwater without anyone noticing.

Fact #2248 · Ocean

Sea otters hold hands while sleeping to avoid drifting apart.

Fact #364 · Ocean