Your dog can recognize you from a photo: pets can pick out familiar faces (but prefer looking at other canines)

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Dogs may possess the ability to recognise facial features from photographs - a skill previously thought to be exclusive to humans and some primates.

src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjV-tt0QA_jwiQZpC0fZh7m6U44c1-AFYv_FBpZGdpBFYbaVRQg9DulW5uKI4ampMQfCqnoPYOv2uKQnmx5F84m3VR-qR1dHssTLFV-L2kdvMhwuWwJ3UK2FIOttG300k3GXzoNddG_gQ_R/s1600/Dogs.jpg" title="dogs" width="320">A study by researchers at the University of Helsinki in Finland used eye movement tracking to see if they look at familiar and strange faces differently.

Source: Here