Science Advances

Supplementary Materials

This PDF file includes:

  • Fig. S1. Alternative evolutionary models of social evolution for the three-state scheme.
  • Fig. S2. Primate phylogeny showing ancestral state reconstructions for society under the IC model of evolution for the three-state scheme.
  • Fig. S3. Results of the taxonomic sampling analyses.
  • Table S1. Classification of social organization for the three-state scheme (S: solitary; P: pair living; G: group living) and the four-state scheme (S: solitary; P: pair living; UM: unimale groups; MM: multimale, multifemale groups) used in this study.
  • Table S2. The D statistic for all binary traits.
  • Table S3. Top 10 evolutionary models of primate social organization for the three-state scheme.
  • Table S4. Top 10 evolutionary models of primate social organization for the four-state scheme.
  • Table S5. Top 10 evolutionary models of primate social organization for the three-state scheme using 1000 different trees from the 10kTrees Project (version 3;59).
  • Table S6. Top 10 evolutionary models of primate social organization for the four-state scheme using 1000 different trees from the 10kTrees project (version 3;59).
  • Table S7. Average number of transitions inferred across 10,000 stochastic maps using SIMMAP function in R.
  • Table S8. Proportion of pairs among primate social units with at least one pair.

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