The ocean's average depth is about 12,100 feet — deep enough to submerge most skyscrapers.

Bioluminescence allows some deep-sea creatures to produce light.

Fact #656 · Ocean

Certain birds migrate seasonally to access food sources.

Fact #905 · Ocean

Dolphins use teamwork.

Fact #2576 · Ocean

The Erie Canal connected the Great Lakes to the Atlantic Ocean.

Fact #1131 · Ocean

Some coral reefs are visible from space.

Fact #197 · Ocean

Some deep-sea species have extremely slow metabolisms.

Fact #1403 · Ocean

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

Fact #530 · Ocean

Male seahorses carry and give birth to the young — the only male animal known to experience true pregnancy.

Fact #3527 · Ocean