Abstract
Hunting and gathering is, evolutionarily, the defining subsistence strategy of our species. Studying how children learn foraging skills can, therefore, provide us with key data to test theories about the evolution of human life history, cognition, and social behavior. Modern foragers, with their vast cultural and environmental diversity, have mostly been studied individually. However, cross-cultural studies allow us to extrapolate forager-wide trends in how, when, and from whom hunter-gatherer children learn their subsistence skills. We perform a meta-ethnography, which allows us to systematically extract, summarize, and compare both quantitative and qualitative literature. We found 58 publications focusing on learning subsistence skills. Learning begins early in infancy, when parents take children on foraging expeditions and give them toy versions of tools. In early and middle childhood, children transition into the multi-age playgroup, where they learn skills through play, observation, and participation. By the end of middle childhood, most children are proficient food collectors. However, it is not until adolescence that adults (not necessarily parents) begin directly teaching children complex skills such as hunting and complex tool manufacture. Adolescents seek to learn innovations from adults, but they themselves do not innovate. These findings support predictive models that find social learning should occur before individual learning. Furthermore, these results show that teaching does indeed exist in hunter-gatherer societies. And, finally, though children are competent foragers by late childhood, learning to extract more complex resources, such as hunting large game, takes a lifetime.
Highlights
Primates in general, and chimpanzees, bonobos, and humans in particular, have adopted a long and slow life history strategy known as K-selection (MacArthur and Wilson 1967; Smith 1989)
Before we describe our methods and results, we offer some background on human life history patterns, and outline features of social and individual learning in humans
We investigated each to determine whether they contained significant emphasis on hunter-gatherer learning in childhood
Summary
Chimpanzees, bonobos, and humans in particular, have adopted a long and slow life history strategy known as K-selection (MacArthur and Wilson 1967; Smith 1989). Though humans are similar in size to chimpanzees, some of our life history traits do not fit the expected pattern for our clade. We have longer pre-reproductive lifespans, higher fertility, and shorter interbirth intervals than expected for our body size, even when considering the variability in human birth spacing and fertility (Chisholm 1993; Lancaster et al 2000; Leigh 2001; Robson and Kaplan 2003). Primates have a period of infancy, from birth throughout the process of weaning. This is directly followed by juvenility, where individuals are independent from direct provisioning from parents but are not sexually mature. Bogin (2006) suggests that humans have inserted another life history stage between these: early childhood, defined as a period in which, though weaned, children still rely on adults for direct care (Bogin 1997)
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