It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Every human spent about half an hour as a single cell.
144
Over 50% of lottery players go back to work after winning the jackpot.
71
15 percent of Americans secretly bite their toes.
57
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Up to the age of six or seven months a child can breathe and swallow at the same time. An adult cannot do this.
165
People with blue eyes are better able to see in the dark.
153
You can only remember 4 things at a time.
31