Sheep, goats, octopuses, and toads have rectangular pupils.
7
The human eye blinks an average of 4,200,000 times a year.
233
Poor eyesight (myopia) is associated with higher IQ.
232
If the human eye was a digital camera, it would have 576 megapixels.
25
Tigers can see 6 times better at night than humans.
305
The colossal squid has the largest eyes in the world.
4
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132