Sea pigs are deep-sea relatives of sea cucumbers that walk along the ocean floor on tube-like legs.

The ocean contains structures larger than mountain ranges.

Fact #1773 · Ocean

Hydrothermal vents support unique ecosystems without sunlight.

Fact #662 · Ocean

The Pacific Ocean is home to the Mariana Trench.

Fact #276 · Ocean

Some whales sing songs that travel hundreds of miles underwater.

Fact #381 · Ocean

Deep-sea environments have crushing pressures far greater than at sea level.

Fact #1394 · Ocean

Saltwater crocodiles can swim out to sea and have been found hundreds of miles from shore.

Fact #5129 · Ocean

The Pacific Ocean has the most islands of any ocean.

Fact #327 · Ocean

Whale songs can travel thousands of miles through the ocean.

Fact #5122 · Ocean