Scientific Reports Chaudhary, N, Salali, G D, Thompson, J, Rey, A, Gerbault, P, Stevenson, E G J, Dyble, M, Page, A E, Smith, D, Mace, R, Vinicius, L & Migliano, A B 2016, ' Competition for Cooperation : Variability, benefits and heritability of relational wealth in hunter-gatherers ', Scientific Reports, vol. 6, 29120 . https://doi.org/10.1038/srep29120