There are about 1,400 different species of bacteria in your belly button.
10
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
If you hold farts in during the day, they'll just come out when you sleep.
16
A human being loses an average of 40 to 100 strands of hair a day.
133
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
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269