Obsessive nose picking is called Rhinotillexomania.
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The human eye blinks an average of 4,200,000 times a year.
233
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
We share 70% of our DNA with a slug.
218
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62