It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Each year, around 24,000 Americans are bitten by rats!
65
Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
58
Males sweat 40% more than females.
104
Women who read romance novels have sex twice as often as those who don't.
101
A man named Charles Osborne had the hiccups for approximately sixty-nine years.
79
Men laugh longer, louder, and more often than women.
61
Women have a slightly higher average IQ than men.
164