The Roman aqueduct system delivered up to 1 million cubic meters of fresh water to Rome daily.

Sea turtles have existed for over 100 million years.

Fact #1286 · Human Body

Mammoths and early humans lived at the same time.

Fact #633 · Human Body

The human skeleton is made up of over 200 bones in adulthood.

Fact #34 · Human Body

The Earth's axis is tilted about 23.5 degrees.

Fact #256 · Human Body

Some insects have compound eyes made of many lenses.

Fact #513 · Human Body

In 1920, a town in Minnesota briefly elected a bear as mayor in a publicity stunt.

Fact #773 · Human Body

The human brain contains roughly 86 billion neurons.

Fact #8 · Human Body

The brain named itself.

Fact #1692 · Human Body