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
There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
People with blue eyes are better able to see in the dark.
153
More redheads are born in Scotland than in any other part of the world.
85
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Every three seconds, a new baby is born.
122