Question

Why do the eyes of a cat twinkle in the dark​

Answer 1

Answer:

Cats' eyes are different than our own. That green glow (although some breeds do have different coloring) you see is because the light is reflecting off a part of their eyes called the tapetum lucidum. It's a reflective surface that is behind the cat's retinas.

Answer 2

Answer:

A CAT'S EYES GLOW THANKS TO ITS TAPETUM LUCIDUM. EYES THAT GLOW IN THE PITCH BLACK NIGHT MAKE FOE MANY A SCARY TALE. BUT SOMETIMES THE LIGHT DOESN'T HIT THE PHOTORECEPTOR SO THE TAPETUM LUCIDUM ACTS AS A MIRROR TO BOUNCE IT BACK FOR A SECOND CHANCE .