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

The dragonfish has bioluminescent organs along its body.

Fact #1404 · Human Body

The Tyrannosaurus rex may have had excellent vision.

Fact #687 · Human Body

A polar bear’s sense of smell is extremely powerful.

Fact #486 · Human Body

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

Fact #627 · Human Body

The brain named itself.

Fact #1692 · Human Body

Humans reached the Moon less than 70 years after powered flight.

Fact #1741 · Human Body

The Sumerians developed one of the earliest known writing systems.

Fact #644 · Human Body

Sea turtles have existed for over 100 million years.

Fact #1286 · Human Body