Some deep-sea octopuses brood their eggs for years.

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

Fact #4466 · Ocean

Certain marine mammals have thick blubber for insulation.

Fact #877 · Ocean

The tallest mountain from base to peak is Mauna Kea in Hawaii — it's just mostly underwater.

Fact #3405 · Ocean

Some deep-sea octopuses brood their eggs for years.

Fact #1413 · Ocean

Some whales can hold their breath for over an hour.

Fact #179 · Ocean

The ocean contains structures larger than mountain ranges.

Fact #2105 · Ocean

Hurricanes gain strength from warm ocean water.

Fact #808 · Ocean

In 1970, a whale carcass was blown up with explosives in Oregon to remove it from a beach.

Fact #793 · Ocean