Vitamin D deficiency is associated with increased risk of multiple sclerosis, depression, and autoimmune disease.

The Pacific Ocean is larger than all the Earth's landmasses combined.

Fact #3394 · Ocean

The giant squid lives in deep ocean waters.

Fact #659 · Ocean

A humpback whale’s song can last for hours.

Fact #549 · Ocean

Dolphins give each other names — they use unique whistle signatures to identify individuals.

Fact #3518 · Ocean

A whale shark is the largest fish in the ocean.

Fact #462 · Ocean

Bioluminescence is common among deep-sea organisms.

Fact #1418 · Ocean

The deep ocean floor is covered with fine sediment known as ooze.

Fact #1422 · Ocean

A giant squid lives in deep ocean waters.

Fact #522 · Ocean