Night vision relies on a type of photoreceptor in your eye called a rod, while cones (a different kind of photoreceptor) ...

Reindeer’s Freaky Eyes Give Them In-Built Night Vision For Spotting Snacks Their winter blue eyes appear to help them to detect UV-absorbing lichens. Holly Large ...

Forget's Rudolph's red nose! Reindeers use their blue eyes as night vision goggles to help them find food in winter, study finds. Reindeers are only animals known to change eye colour depending on ...

Unlike night-vision goggles, which can only see infrared light in green, people wearing the contacts can see infrared light in red, blue and green wavelengths. Because visible light is blocked by ...

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, ...