The largest cell in the human body is the female egg and the smallest is the male sperm.
682
The human eye blinks an average of 4,200,000 times a year.
233
The average sperm cell swims at 8 inches per hour.
4
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
It takes approximately 12 hours for food to entirely digest.
93
In one day, adult lungs move about 10,000 litres of air.
11