If the human eye was a digital camera, it would have 576 megapixels.
25
Tigers can see 6 times better at night than humans.
305
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
A person can live without food for about a month, but only about a week without water.
156
Enamel is hardest substance in the human body.
61
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
