Which colour are cats eyes showing going down the wrong way on motorway?

This is a bit of a trick question! The color of a cat's eyes doesn't change based on the direction they're looking. Cat eyes are typically green, yellow, or gold.

The reason you might think about eye color in this scenario is that we often associate red eyes with animals seen at night. This is because of the "red-eye effect" in photographs, where the flash reflects off the animal's retina.

However, a cat's eye color in the dark would still be the same as it is in the light. They wouldn't actually be red!