What will dog think if you show a mirror to it?

My older dog used to bark when looking at the mirror when she was a puppy... I guess she is smart now and recognize the difference.... Or maybe she doesn't care about mirror images. My cat used to attack mirror for a while, disappointed that mirror is not fighting back... My younger dog cares about food only, mirror is not barking and not taking food away... There are at least 3 mirrors at my home they can look at everyday....no reaction so far...but, I never ask them what they think (!!!)....

whenever we show our dogs themselves in the mirror they arent quite sure what to make of it.then they start to bark then the tails go and they just stare.i think in the end they do know it is themselves

When we first moved into our house our dog flipped out in the middle of the night because he saw himself in the closet mirror. It scared the heck out of me, but it was really quite funny since he actually thought it was another dog. Finally he calmed down and realized he was looking at himself. It was a really cute moment.

I know what most dog (male) would say: Ciao Bella! Now seriously this is a good question actually. Do animals know its them who they see? For example dogs mainly rely on their smell and they cant smell a mirror. Im sure that would confuse them a lot. I doubt they understand its them what they are seeing.

welll my dog used to bark his lungs out he used to see his mirror image...