Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Our Right Lungs takes more air than our left lung.
194
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Enamel is hardest substance in the human body.
61
The average person will go on a date at least 100 times before they finally marry.
33