These animals and insects are a sight to see. Browse the gallery and focus your attention on their mesmerizing peepers.
As well as their amazing ability to change color, chameleons possess the most distinctive eyes of any reptile, with each eye pivoting and focusing independently.
Octopuses cannot see in color, and their eyes are focused through movement, much like the lens of a camera or telescope.
Goat's have horizontal, slit-shaped pupils, a characteristic that enables them to see 280 degrees around their bodies.
Resembling a lime green pencil, even the eyes of this supple serpent are seriously streamlined.
This odd-looking critter is certainly keeping an eye out... or two.
Stare into this owl's eyes long enough and see if you don't become hypnotized.
See also: The secret life of bats