The world's youngest parents were 8 and 9 and lived in China in 1910.
130
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
One in 500 humans has one blue eye and one brown eye.
145
On average a woman has 4 sexual partners in her lifetime.
-143
In a year, the average person walks four miles to make his or her bed.
56
Intelligent people have more zinc and copper in their hair.
233
About 3000 years ago, most Egyptians died by the time they were 30!
18
Chen Guanming, from Jiangsu province in eastern China, traveled by RICKSHAW for 2 years and covered nearly 40,000 miles through 16 countries, surviving flood, war zones and extreme temperatures, finally arriving at the London 2012 Olympics.
7