Two 110 million-year-old spiders with eyes that still glow in the dark have been discovered trapped ... but their eyes are regular eyes—whereas wolf spiders at nighttime, you see their eyes ...

It’s the result of evolutionary mechanisms which allow certain species to see better in the dark. First, there’s one thing to clarify. When you see these animals at night, their eyes don’t actually ...

If you have a flashlight, you can spot them by the creepy green glow of their eyes. Most spiders have eight eyes. In some species — mostly those that hunt for their prey, like wolf spiders ...