Sheep, goats, octopuses, and toads have rectangular pupils.
7
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The colossal squid has the largest eyes in the world.
4
If the human eye was a digital camera, it would have 576 megapixels.
25
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
Those things you see in your eyes when you stare into space are called Mouches Voltanes, which are also broadly referenced to as Floaters.
9