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 ...

If approached by a predator, the frog will open its eyes ... Owls have extremely large eyes. Nocturnal, the owl sees well in ...

Geckos, on the other hand, have excellent colour vision at night - a useful advantage for a nocturnal hunter ... of water to startle a potential predator or by closing their shell. Excellent vision ...

Many of the animals that eat red-eyed tree frogs are nocturnal hunters that use keen eyesight to find prey. The shocking colors of this frog may over-stimulate a predator's eyes, creating a ...

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 ...