The presence of the tapetum can be observed at night when a pair of glowing eyes reflects back a flashlight or some other light source. (Interestingly, different animals have different color ...

presumably because color vision is less important at night and because cones are most effective in bright daylight. If the benefits of seeing dwindle to none, some animals lose their eyes altogether.

By analysing the properties of animals' visual systems, we can model what the world would look like ... Their eyes have evolved to be up to 350 times more sensitive to colour at night than ours.

By hunting at night, the loris can avoid having to ... The snout, ears, and eyes of these animals can absorb ultraviolet ...

There are some animals that only come out at night and they are called nocturnal animals. Woo. Woo! Who do you think these eyes belong to? Owls. Owls have big eyes to help them see in the dark.

Nocturnal geckos have superb vision in dim light - their eyes are 350 times more sensitive to colour at night than a human's (see for yourself with our animal vision interactive). Lacking eyelids, ...