An ostrich's eye is larger than its brain.

The Sumerians developed one of the earliest known writing systems.

Fact #644 · Human Body

The fangtooth fish has some of the largest teeth relative to body size in the ocean.

Fact #1392 · Human Body

DNA carries genetic information in living organisms.

Fact #37 · Human Body

The first successful human heart transplant was performed in 1967.

Fact #1188 · Human Body

A dog’s nose print is unique, similar to a human fingerprint.

Fact #1347 · Human Body

Water covers more than 70% of Earth's surface.

Fact #86 · Human Body

Polar bears have a thick layer of fat to retain body heat.

Fact #867 · Human Body

A gecko can climb vertical surfaces using microscopic hairs on its feet.

Fact #415 · Human Body