Due to their playful propensity, dogs are a good model to test some hypotheses about play dynamics (length, asymmetry, features of players) and communication (play
Emotional contagion is a basic form of empathy that makes individuals able to experience others’ emotions. In human and non-human primates, emotional contagion can be
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A) Playing, being playful, is the healthiest way to spend your time (after feeding and housing yourself).
B) The activities that evoke playful feelings are unique to each of us.
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