Hunter-Gatherer children's close-proximity networks: Similarities and differences with cooperative and communal breeding systems.

Accordingly, in the corresponding mixed-effects model, being an unrelated campmate was associated with significantly lower involvement than being a member of any other relationship category, except in the case of Agta grandfathers where the association approached significance ( p = 0.054) (Agta: n = 866 dyads; BaYaka: n = 736 dyads; see Table S3 for full results).

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