The Open University, CC BY-SA Most dogs’ eyes will glow in dark spaces when a light shines on them. Tommy Greco, CC BY-SA This bush baby can probably see better at night than you can.

The human brain emits a faint glow. New research shows this light reflects mental state - and could lead to new diagnostic ...

Why Walleye Eyes Reflect Light in Photos You’ve no doubt seen the eye of a walleye turn glassy white in photos or when a light shines on it. And you’ve certainl ...

While reindeer no longer live in our backyards, if they ever happen to be flying by, watch for their luminous blue eyes. It turns out they probably don’t really need a glowing red nose to see ...

Flashlight fish favor dark environments like caves and overhangs. In those conditions, they end up looking like a pair of spooky glowing eyes with no body, as in the video above.

Species whose eyes glow have evolved to see better in low light because they either forage or need to look out for predators throughout the night, or they do most of their hunting at dawn and dusk. In ...