Play in dolphins

one can ask if there is stabilizing selection for fun and fairness that reins in the possible costs of behavior that can be too risky or too costly, including social play. We know, for example, that individual golden marmots, southern fur seals, and young bighorn sheep who are caught up in the frivolity of play seem to suffer more injuries and higher mortality than those who are not playing. So, while there are bits of data that inform this area of inquiry, it really is wide open for further detailed study. What is really nice about studying play and fun in dogs is that you can see all of the above at your local dog park. When we study play and fun we’re really studying ourselves as well. And, it’s fun to do. It’s a winwin for all involved.