The loudest sound ever recorded was the 1883 eruption of Krakatoa, heard 3,000 miles away.

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 fish can learn by observing other fish.

Fact #1315 · Human Body

Camels have specialized red blood cells that help them survive dehydration.

Fact #856 · Human Body

Your stomach replaces itself every few days.

Fact #1696 · Human Body

The human brain weighs about three pounds on average.

Fact #244 · Human Body

The Empire State Building was completed in just over a year.

Fact #1512 · Human Body

The human body replaces many of its cells regularly.

Fact #182 · Human Body