You can tell the age of a whale by looking at the wax plug in its ear. This plug in the ear has a pattern of layers when cut lengthwise that scientists can count to estimate the age of the whale.

Keeping Warm With an Axe, is the title of a real how-to book. Click Here For More Details.

Hydrogen gas is the least dense substance in the world, at 0.08988g/cc.

AMAZING FACTS