The world's youngest parents were 8 and 9 and lived in China in 1910.
130
Babies crawl an average of 200m a day.
212
Studies show that financially stable men prefer smaller breasts.
16
Half of all Americans over the age of 55 have no teeth.
39
Senegalese women spend an average of 17.5 hours a week just collecting water.
27
Intelligent men tend to be more sexually faithful.
31