Only humans shed emotional tears.
331
Your heart will pump about 212 million liters in its lifetime.
26
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
In one day, adult lungs move about 10,000 litres of air.
11
On average, there's 100 billion neurons in the human brain.
83
Every human spent about half an hour as a single cell.
144
The human brain is more active during sleep than during the day.
28
Babies crawl an average of 200m a day.
212