The average sperm cell swims at 8 inches per hour.
4
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Gorillas can catch human colds and other illnesses.
205
Your thumb is about the same size as your nose.
124
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
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
A human being loses an average of 40 to 100 strands of hair a day.
133