There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
According to the American Society for Microbiology, 90% of women and 75% of men wash their hands after using a public restroom.
170
Intelligent people have more zinc and copper in their hair.
233
More redheads are born in Scotland than in any other part of the world.
85
Females learn to talk earlier, use sentences earlier, and learn to read more quickly than males.
119
The most recorded orgasms in an hour were 134 for one woman and only 16 for a man.
192