Some deep‑sea fish create their own light.

The Mariana Trench is so deep that Mount Everest could be placed inside it and still be covered by over a mile of water.

There are more atoms in a glass of water than glasses of water in all Earth's oceans.

Sea lions can rotate their rear flippers forward to walk on land.

The Earth's oceans are interconnected.

In 1796, Edward Jenner developed the world's first vaccine by using cowpox material to induce immunity against smallpox, a breakthrough that led to the disease's global eradication.

There are places in the ocean where pressure is over 1,000 times greater than at sea level.

The Ring of Fire surrounds much of the Pacific Ocean.

Many deep-sea animals lack strong pigmentation.