The colossal squid has the largest eyes in the world.
4
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
The human eye blinks an average of 4,200,000 times a year.
233
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Poor eyesight (myopia) is associated with higher IQ.
232
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21