Glacial periods caused sea levels to drop significantly.

The Pacific Ocean is deeper than Mount Everest is tall.

Fact #258 · Ocean

Octopuses can escape sealed containers and solve puzzles.

Fact #2561 · Ocean

Roughly half of all humans who have ever lived died from infectious diseases.

Fact #2766 · Ocean

Sea cucumbers can expel internal organs as a defense mechanism.

Fact #350 · Ocean

Vaccination campaigns have eliminated several diseases in many regions.

Fact #1224 · Ocean

Sea otters hold hands while sleeping so they don't drift apart.

Fact #3229 · Ocean

Sea otters hold hands while sleeping to avoid drifting apart.

Fact #364 · Ocean

Glacial periods caused sea levels to drop significantly.

Fact #748 · Ocean