My name's Earl, and I'm a roving web wanderer. Every weekday, I answer a question from curious folks like you. Wild to Mild .
Cats are predators, and rely on their strong night vision to hunt and capture prey.
You'll notice that a cat's eyes only glow in the dark when a light is shining in them. That's because of a mirror-like tissue in the cat's eyes called a tapetum lucidum. This tissue is located behind the cat's retina, and reflects light back into the retina when light hits it. This helps get more information to the retina's light receptors, which helps the cat see more things at night. Hint - it's an important part of your inner eye.