On average, there's 100 billion neurons in the human brain.
83
Gorillas can catch human colds and other illnesses.
205
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Your heart will pump about 212 million liters in its lifetime.
26
By weight, Bone is five times stronger than steel.
417
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
There are about 255 babies born worldwide every minute.
46