The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
The average person will go on a date at least 100 times before they finally marry.
33