In 1982, a cactus in Phoenix, Arizona killed a man. David Grundman fired two shotgun blasts at a giant saguaro cactus that ended up falling on top of him.

The size of a red blood cell is 708 microns. This is equivalent to one millionth of a meter.

If you doubled one penny every day for 30 days, you would have $5,368,709.

AMAZING FACTS