Teeth are the only part of the human body that cannot repair themselves.

The steam engine powered early industrial machinery.

Fact #1544 · Human Body

The Olympic Games are held every four years.

Fact #923 · Human Body

DNA carries genetic information in living organisms.

Fact #37 · Human Body

There are more possible shuffles of a deck of cards than seconds since Earth formed.

Fact #1675 · Human Body

The human skin is the body's largest organ.

Fact #247 · Human Body

Some animals can regenerate entire body parts.

Fact #1743 · Human Body

Certain reptiles regulate body temperature through basking.

Fact #527 · Human Body

A polar bear once became an official member of a military unit in Norway.

Fact #642 · Human Body