Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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The human eye blinks an average of 4,200,000 times a year.
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Poor eyesight (myopia) is associated with higher IQ.
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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
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
Tigers can see 6 times better at night than humans.
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Only about 2% of the world population has green eyes.
36