Only humans shed emotional tears.
331
Gorillas can catch human colds and other illnesses.
205
A human being loses an average of 40 to 100 strands of hair a day.
133
A man's beard grows fastest when he anticipates sex.
239
The average person will go on a date at least 100 times before they finally marry.
33
The human brain doesn't stop developing until about 25 years old.
102
Your thumb is about the same size as your nose.
124