Lake Malawi contains more species of fish than any other lake in the world.

The whale shark is the world's largest fish, growing up to 12 meters and filtering tons of water daily.

Fact #4541 · Ocean

Some deep‑sea creatures have never seen sunlight in millions of years.

Fact #2237 · Ocean

Sharks predate trees by about 90 million years — they've been swimming Earth's oceans for 450 million years.

Fact #5120 · Ocean

The highest recorded ocean wave exceeded 80 feet in height.

Fact #920 · Ocean

Some fish can walk on land.

Fact #1702 · Ocean

The Mariana Trench is the deepest known part of Earth's oceans.

Fact #109 · Ocean

The geoduck clam can live over 150 years and is the largest burrowing clam in the world.

Fact #4550 · Ocean

The Great Barrier Reef is the largest coral reef system in the world.

Fact #13 · Ocean