The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
People in parts of Western China put salt in their tea instead of sugar.
16
Every human spent about half an hour as a single cell.
144
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Thrity-five percent of the people who use personal ads for dating are already married.
102
The single biggest predictor of love is proximity.
30
Men laugh longer, louder, and more often than women.
61