I was always told that animals can't see in the mirror like we do. It was explained that they don't see dimensions the same as we do therefore they can't see their reflection. Well I'm pretty sure this is proof that that theory is false.

This little kitten walks by the mirror and sees his reflection. Thinking that there is another cat there he starts charging the mirror as if he's a big bad cat that won't be messed with. Only problem is, it's himself he's trying to scare.

Watch what happens when he gets so caught up in fighting the cat in the mirror he forgets he's on a ledge.