There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Gorillas can catch human colds and other illnesses.
205
Only humans shed emotional tears.
331
The average person will go on a date at least 100 times before they finally marry.
33
A man's beard grows fastest when he anticipates sex.
239
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Pain occurs when sounds are above 130 db.
124
The human brain doesn't stop developing until about 25 years old.
102