Nocturnal animals tend to have proportionally bigger eyes than humans do. They also tend to have pupils that open more widely in low light. So, at the outset, nocturnal eyes gather more light than ...

The smallest animal eyes, adorning the heads of fairy wasps ... But mammals evolved from a nocturnal ancestor that had lost two of these cones, presumably because color vision is less important ...

To see in a world of darkness, some nocturnal animals have developed a reflective surface behind their retinas that enables their eyes to take in more light: the photons pass through the retina ...

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, ...

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 animals tend to have proportionally bigger eyes than humans do. They also tend to have pupils that open more widely in low light. So, at the outset, nocturnal eyes gather more light than ...