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
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.
130
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
There's a woman named Veronica Seider who had vision 20x better than average. She could identify people more than a mile (1.6km) away.
22
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
