This paper examines patterns of anger, aggression, and humor during 95
floor hockey games in a small fishing village in Newfoundland. The ob
served behaviors meet the prediction, based on evolutionary theory, th
at anger and aggression will be more frequent among males at the age w
hen mate competition is most intense. Aggression was also found to be
combined with humor most frequently in interactions among players atte
mpting to form social relationships. This last finding is consistent w
ith the hypothesis that combining humor (smiling and laughing) with wh
at would otherwise be interpreted as aggressive behavior is a means of
establishing trusting relationships between individuals. The potentia
l contribution of an evolutionary approach to studies of anger and agg
ression is discussed.