A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Intelligent people have more zinc and copper in their hair.
233
There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
Men are more attracted to women whose bone structure is similar to their own mothers. It's called "sexual imprinting".
18
City dwellers have longer, thicker, denser nose hairs than country folks do.
48
The Japanese, on average, are the shortest people.
320
Over 98 percent of Japanese people are cremated after they die.
54
The world's youngest parents were 8 and 9 and lived in China in 1910.
130