In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269
The colossal squid has the largest eyes in the world.
4
Poor eyesight (myopia) is associated with higher IQ.
232
Only about 2% of the world population has green eyes.
36
Sheep, goats, octopuses, and toads have rectangular pupils.
7
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22