Surfer Garrett McNamara rode a 78-foot wave off Nazaré, Portugal, in 2011 — a record at the time.

Sea turtles have existed for over 100 million years.

Fact #1286 · Ocean

Some deep‑sea fish create their own light.

Fact #2475 · Ocean

Some whales communicate across vast distances underwater.

Fact #228 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #1974 · Ocean

The world's deepest postbox is in Susami Bay, Japan — it sits 10 meters underwater and receives waterproofed mail.

Fact #3976 · Ocean

Only about 5% of the ocean has been explored by humans.

Fact #2776 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #1805 · Ocean

Some deep-sea fish like the viperfish have teeth so large they cannot close their mouths.

Fact #5109 · Ocean