There are more possible iterations of a Rubik's Cube than there are atoms on Earth.

The stegosaurus had a brain about the size of a walnut.

Fact #627 · Human Body

The Earth's core generates geothermal heat.

Fact #293 · Human Body

The human body is about 60% water.

Fact #45 · Human Body

An adult giraffe can clean its ears with its tongue.

Fact #248 · Human Body

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

Fact #1392 · Human Body

The Thirty Years’ War affected much of Central Europe.

Fact #1171 · Human Body

Some fish can learn by observing other fish.

Fact #1315 · Human Body

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

Fact #642 · Human Body