Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The colossal squid has the largest eyes in the world.
4
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.
132
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
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
If the human eye was a digital camera, it would have 576 megapixels.
25