Can animal smile? We are going to show you some images of animals who it seems that they are smiling!!!!!
In fact it is because of a phenomenon called Pareidolia and in this case our mind tends to see human face in everything around us. Many animals have different other visual signs to express their emotions that we may translate it to smile. For example, dogs communicating with each other by raising their haunches, showing their teeth, changing their posture from raising to lowering or wagging their tales. so, maybe it is not so reasonable to expect them to smile. But scientists are working on the theory that animals have more complex range of emotions and some of them maybe have facial expressions, too. For example, McGill University in 2010 showed that mice have different facial expressions to show pain.