If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
One human hair can support 3 ounces.
191

Mushrooms are more closely related to humans than they are to plants.
47
We share 70% of our DNA with a slug.
218
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Gorillas can catch human colds and other illnesses.
205
The human body contains over a billion miles of DNA.
147
A human being loses an average of 40 to 100 strands of hair a day.
133