As mentioned before, most of them lack eyelids, and instead have a transparent membrane, which they lick to clean. Nocturnal species have excellent night vision; their eyes are 350 times more sensitive to light than the human eye.
These creatures are very interesting. One other interesting feature of geckos is that the hair on a gecko’s foot are so tiny that it can form inter-molecular forces of attraction with most surfaces and thus making the gecko adhere even on glass without the use of liquids or surface tension!
Geckos are in fact amazing! Especially when they are not trying to sell you insurance.
