Only 2% of the worlds population is blonde.
15
A hard working adult sweats up to 4 gallons per day.
39
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Every workday, 6.7 million people commute to Manhattan!
26
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
A chance of a woman having twins is increased after the age of 35. About 1 in 27 women will give birth to twins after this age. After 50 the chances of having twins is 1 in 9.
51