The Pacific Ocean covers more area than all of Earth's landmasses combined.

The Atlantic Ocean is widening by about 2.5 cm per year as tectonic plates spread apart.

Fact #5124 · Ocean

The deepest part of the ocean could submerge Mount Everest.

Fact #2348 · Ocean

More than half of the world's coral reefs have been lost since the 1950s due to warming and acidifying oceans.

Fact #4292 · Ocean

The Great Barrier Reef is home to thousands of marine species.

Fact #76 · Ocean

Some species of nudibranch (sea slug) incorporate stinging cells from jellyfish into their own bodies for defense.

Fact #5126 · Ocean

Deep-sea creatures often have bioluminescent organs for communication.

Fact #884 · Ocean

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

Fact #3976 · Ocean

Some whales can hold their breath for over an hour.

Fact #179 · Ocean