Image from cover of the book "Genius Of Dogs."
Obedient, cuddly energetic. These are the sorts of adjectives humans use to describe their canine companions, but what about smart?
For decades not much was known about what dogs can or cannot comprehend, but all that has changed in recent years thanks in no small part to a guy named Brian Hare.
Hare is the director of the Canine Cognition Center at Duke University, he's also the co-author of the new book, "The Genius of Dogs: How Dogs Are Smarter Than You Think."