• A D Pellegrini and David F Bjorklund.
• Department of Educational Psychology, University of Minnesota, 214 Burton Hall, 55455, Minneapolis, MN. pelle013@umn.edu.
• Hum Nat. 2004 Mar 1;15(1):23-43.

AbstractWe examine the ontogeny and phylogeny of object and fantasy play from a functional perspective. Each form of play is described from an evolutionary perspective in terms of its place in the total time and energy budgets of human and nonhuman juveniles. As part of discussion of functions of play, we examine sex differences, particularly as they relate to life in the environment of evolutionary adaptedness and economic activities of human and nonhuman primates. Object play may relate to foraging activities. Although fantasy play has been viewed as limited to humans, we speculate that certain types of fantasy play may be present in some nonhuman primates. Fantasy play may enable juveniles to see situations from different perspectives. We conclude that fantasy play may have immediate effects and object play may have deferred effects.

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