A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
Pumice is the only rock that floats on water.
14
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
If you get water flowing fast enough, it can cut metal.
354
The Kangaroo Rat can last longer without water than a camel.
233
Penguins have a gland above their eye that turns saltwater into freshwater.
12
By peeing in the shower, you can save 1,157 gallons of water a year.
31