The cornea is the only part of the body that has no blood supply — it gets oxygen directly from the air.

The gulper eel has a large mouth that allows it to swallow prey bigger than its body.

Fact #1386 · Human Body

Grizzly bears can run at speeds over 30 miles per hour.

Fact #1260 · Human Body

The Earth's magnetic poles slowly shift over time.

Fact #212 · Human Body

Fossils form when organisms are preserved in sediment over millions of years.

Fact #678 · Human Body

Cats can rotate their ears independently.

Fact #1336 · Human Body

Ants do not have lungs and breathe through small openings in their bodies.

Fact #351 · Human Body

The Earth's mantle is composed of semi-solid rock.

Fact #329 · Human Body

A lion's roar can be heard from several miles away.

Fact #439 · Human Body