The flying snake of Southeast Asia undulates its body while gliding — generating lift like a wing.

Some birds have hollow bones to reduce body weight for flight.

Fact #889 · Human Body

Some snakes shed their skin multiple times a year.

Fact #485 · Human Body

Atmospheric rivers can deliver massive amounts of rainfall.

Fact #845 · Human Body

The human liver can regenerate lost tissue.

Fact #123 · Human Body

Your brain uses 20% of your energy.

Fact #1709 · Human Body

A narwhal’s tusk is actually an elongated tooth.

Fact #551 · Human Body

The human body has over 600 muscles.

Fact #160 · Human Body

The Earth's outer core is liquid metal.

Fact #250 · Human Body