If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
It takes approximately 12 hours for food to entirely digest.
93
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
One human hair can support 3 ounces.
191
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132