The average woman uses her height in lipstick every 5 years.
146
Two in five people in the world marry their first love.
270
There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
Infants spend more time dreaming than adults do.
102
Intelligent men tend to be more sexually faithful.
31
Roughly a quarter of the world's people live in China.
50
Every human spent about half an hour as a single cell.
144
Females learn to talk earlier, use sentences earlier, and learn to read more quickly than males.
119