The Antarctic krill population weighs more than the total weight of all humans on Earth.

Some deep‑sea fish create their own light.

Fact #2475 · Ocean

The Great Barrier Reef is the largest coral reef system in the world.

Fact #13 · Ocean

The 2004 Indian Ocean tsunami was triggered by a massive undersea earthquake.

Fact #807 · Ocean

Orcas are members of the dolphin family.

Fact #1244 · Ocean

Certain dolphins cooperate to herd fish in coordinated groups.

Fact #1301 · Ocean

The Pacific Ocean contains numerous coral atolls.

Fact #315 · Ocean

Some whales can hold their breath for over an hour.

Fact #179 · Ocean

Some volcanoes can erupt underwater without anyone noticing.

Fact #2248 · Ocean