The immortal jellyfish sinks to the seafloor and reverts to a cyst when stressed — not just after reproduction.

The deep ocean is the largest habitat on Earth.

Fact #1405 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #2185 · Ocean

Noise pollution from ships disrupts whale communication over entire ocean basins.

Fact #5219 · Ocean

Somewhere between 50% and 80% of earth's living organisms are in the ocean.

Fact #2593 · Ocean

Coral reefs cover less than 1% of the ocean floor but support about 25% of all marine species.

Fact #5113 · Ocean

Marine iguanas in the Galapagos are the only ocean-going lizards in the world.

Fact #5145 · Ocean

Certain whales migrate thousands of miles annually.

Fact #413 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #2114 · Ocean