There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
The higher the income, the more likely an American man will cheat on his wife.
94
Infants spend more time dreaming than adults do.
102
You will experience the billionth second of your life when you are 31 years old.
21
Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
9
2% of Europeans lack the genes for smelly armpits.
6
There are two credit cards for every person in the United States.
2