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

Heart disease is the leading cause of death globally.

Fact #2828 · Ocean

Coral reefs are built by tiny animals called coral polyps.

Fact #654 · Ocean

The sea turtle’s streamlined shell aids in efficient swimming.

Fact #903 · Ocean

The giant amphipod thrives in extreme ocean depths.

Fact #1421 · Ocean

The vampire squid feeds primarily on marine snow.

Fact #1420 · Ocean

The Earth's tilt causes seasonal changes.

Fact #144 · Ocean

There is more water in Earth's mantle than in all the oceans on the surface.

Fact #3594 · Ocean

Octopuses have been observed escaping aquariums, navigating floors, and entering other tanks to hunt for food.

Fact #2335 · Ocean