It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Infants spend more time dreaming than adults do.
102
There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
10
2% of Europeans lack the genes for smelly armpits.
6
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
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
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212