పక్షులలో భావప్రకటన ఉందని మొదటగా కనుగొన్న శాస్త్రవేత్త ఎవరు?
Marc Bekoff reported accounts of animal behaviour which he believed was evidence of animals being able to experience emotions in his book "The Emotional Lives of Animals". The following is an excerpt from his book:
Bystander affiliation is believed to represent an expression of empathy in which the bystander tries to console a conflict victim and alleviate their distress. There is evidence for bystander affiliation in ravens (e.g. contact sitting, preening, or beak-to-beak or beak-to-body touching) and also for solicited bystander affiliation, in which there is post-conflict affiliation from the victim to the bystander. This indicates that ravens may be sensitive to the emotions of others, however, relationship value plays an important role in the prevalence and function of these post-conflict interactions.
Marc Bekoff