When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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The human eye blinks an average of 4,200,000 times a year.
233
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
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Only about 2% of the world population has green eyes.
36
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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