It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Touching a teddy bear can make people feel less lonely.
36
Only 2% of the worlds population is blonde.
15
All babies are color blind when they are born.
114
Americans collectively eat one hundred pounds of chocolate every second.
60
Children laugh about 400 times a day, while adults laugh on average only 15 times a day.
973
People in parts of Western China put salt in their tea instead of sugar.
16