Only humans shed emotional tears.
331
Every human spent about half an hour as a single cell.
144
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
The human brain is more active during sleep than during the day.
28
There are about 255 babies born worldwide every minute.
46
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
The human brain uses approximately as much energy as a 10 watt light bulb.
120