Usually, it’s a shade of green, but some species have yellow eyeshine and blue-eyed animals sometimes have the same red-eye effect as humans. So if you’re cat is looking all evil, don’t worry.

Cats are crepuscular, meaning they are active at dawn and dusk. That may be why they need such good night vision. Their eyes have six to ... with sensitivity peaks at red, green and blue.

Transportation Security Administration officials in Albany are warning travelers about a concerning uptick in innocuous-looking concealed weapons called “cat eyes.” “The frequency in which ...

while in Europe and the U.K., red cat's eyes are found on a highway's hard shoulders to reinforce the left-hand edge lines. And in Europe and the U.K., green is used to indicate junctions ...