A group of jellyfish is called a 'smack.'

There is a river in the ocean — the Gulf Stream moves more water than all of Earth's rivers combined.

Fact #3404 · Ocean

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

Fact #13 · Ocean

Steve Irwin died after being pierced by a stingray barb.

Fact #3201 · Ocean

The tripod fish can stand on the ocean floor using elongated fin rays.

Fact #1397 · Ocean

Octopuses can squeeze through tight spaces due to their soft bodies.

Fact #869 · Ocean

The highest recorded ocean wave exceeded 80 feet in height.

Fact #920 · Ocean

Some volcanoes can erupt underwater.

Fact #2624 · Ocean

Sea otters wrap themselves in kelp to stay anchored while sleeping.

Fact #1267 · Ocean