Men are more attracted to women whose bone structure is similar to their own mothers. It's called "sexual imprinting".
18
The average person falls asleep in seven minutes.
115
Females learn to talk earlier, use sentences earlier, and learn to read more quickly than males.
119
Babies cry but they don't produce tears until one to three months after birth.
238
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
The higher the income, the more likely an American man will cheat on his wife.
94
On average women can hear better than men.
170