The Ethical Dog

Portion of a book review from Scientific American of the book Wild Justice by Marc Bekoff and Jessica Pierce:
"When canids and other animals play, they use actions such as vigorous biting, mounting and body slamming that could be easily misinterpreted by the participants. Years of painstaking video analyses by one of us (Bekoff) and his students show, however, that individuals carefully negotiate play, following four general rules to prevent play from escalating into fighting."