Did you know the scientists now believe that Dogs recognise their owner's face?

Well obviously the dog would recognize the owner by their face in some way, because otherwise they'd just run up to some random person and be all 'I love you!! Let's go home!!' so since they tend to recognize things by smell, if they can't smell you, they have to learn to recognize you in another way. I knew that already, how didn't the scientists? :L