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Teaching and curiosity: sequential drivers of cumulative cultural evolution in the hominin lineage

  • Carel P. van SchaikEmail author
  • Gauri R. Pradhan
  • Claudio Tennie
Review
Part of the following topical collections:
  1. Social complexity: patterns, processes, and evolution

Abstract

Many animals, and in particular great apes, show evidence of culture, in the sense of having multiple innovations in multiple domains whose frequencies are influenced by social learning. But only humans show strong evidence of complex, cumulative culture, which is the product of copying and the resulting effect of cumulative cultural evolution. The reasons for this increase in complexity have recently become the subject of extensive debate. Here, we examine these reasons, relying on both comparative and paleoarcheological data. The currently best-supported inference is that culture began to be truly cumulative (and so, outside the primate range) around 500,000 years ago. We suggest that the best explanation for its onset is the emergence of verbal teaching, which not only requires language and thus probably coevolved with the latter’s evolution but also reflects the overall increase in proactive cooperation due to extensive allomaternal care. A subsequent steep increase in cumulative culture, roughly 75 ka, may reflect the rise of active novelty seeking (curiosity), which led to a dramatic range expansion and steep increase in the diversity and complexity of material culture. A final, and continuing, period of acceleration began with the Neolithic (agricultural) revolution.

Keywords

Cumulative culture Stone tools Out of Africa Imitation Verbal instruction Teaching 

Notes

Acknowledgments

We thank Peter Kappeler for the invitation and Kevin Laland and an anonymous reviewer for valuable comments.

Funding information

This work has received funding from the Swiss National Science Foundation (grant 310030B_160363/1) and European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement no. 714658; STONECULT project)

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. 1.Department of AnthropologyUniversity of ZurichZurichSwitzerland
  2. 2.Department of PhysicsUniversity of South FloridaTampaUSA
  3. 3.Department for Early Prehistory and Quaternary EcologyUniversity of TübingenTübingenGermany

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