Evolution of emotion Evolution of emotion The study of the evolution of emotions dates back to the 19th century. Evolution and natural selection has been applied to the study of human communication, mainly by Charles Darwin in his 1872 work, "The Expression of the Emotions in Man and Animals". Darwin researched the expression of emotions in an effort to support his theory of evolution. He proposed that much like other traits found in animals, emotions also evolved and were adapted over time. His work looked at not only facial expressions in animals and specifically humans, but attempted to point out parallels between behaviors
Body language of dogs position of the ears. It has been found that dogs that make eye contact with the trainer, as well as display a forward ear position, are most successful in learning achievement during operant conditioning. Body language of dogs The body language of dogs is one form of non-verbal communication whereby dogs can express emotions and intentions through bodily movements. It refers to the interpretation of posture and behaviour of species in the genus Canis. This form of visual communication is generally used for identifying emotions and intentions of domestic dogs, though it can also be applied to wild canines such