Children grow faster in the springtime than any other season during the year.
108
There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
Boys who have unusual first names are more likely to have mental problems than boys with conventional names. Girls don't seem to have this problem.
131
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
Babies that are breastfed are more likely to be slimmer as adults than those that are not breastfed.
110
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Men fall in love faster than women do.
32