By Angelica Steinker

Dogs smile. Just like people, dogs pull the corners of their mouths up high toward their eyes, partially open their mouths, and smile. In 1872, Darwin wrote of the universality of facial expressions in The Expressions of Emotions in Man and Animals. Roughly 130 years later, Dr. Patricia McConnell authored …read more

Source:: Clicker Training

      

Copyright © 2020 caninescholarscenter.com. All Rights Reserved.