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

A sea lion can hold its breath for several minutes underwater.

Fact #400 · Ocean

The mimic octopus can impersonate over 15 different marine species.

Fact #3240 · Ocean

Octopuses have been observed using tools and solving puzzles.

Fact #2232 · Ocean

More than 70% of Earth's oxygen is produced by marine plants, primarily phytoplankton.

Fact #3399 · Ocean

Orcas are members of the dolphin family.

Fact #1244 · Ocean

The Earth's tilt is responsible for seasonal climate patterns.

Fact #222 · Ocean

A sea otter uses its chest as a surface for cracking shells.

Fact #530 · Ocean

The immortal jellyfish is the only known animal capable of reverting to its juvenile form repeatedly.

Fact #3845 · Ocean