The authors consider mature make-believe play a critical component of childhood that helps children develop new skills and learn to communicate. They argue that, although theoretical accounts of play have emphasized the importance of make-believe play for children to achieve social and academic competence, the absence of a reliable and valid…

The author offers the thesis that hunter-gatherers promoted, through cultural means, the playful side of their human nature and this made possible their egalitarian, nonautocratic, intensely cooperative ways of living. Hunter-gatherer bands, with their fluid membership, are likened to social-play groups, which people could freely join or leave.…