Smith, D; Dyble, M; Major, K; Page, AE; Chaudhary, N; Salali, GD; Thompson, J; Vinicius, L; Migliano, AB; Mace, R; (2018) A friend in need is a friend indeed: Need-based sharing, rather than cooperative assortment, predicts experimental resource transfers among Agta hunter-gatherers. Evolution and human behavior. ISSN 1090-5138 DOI: https://doi.org/10.1016/j.evolhumbehav.2018.08.004 Item availability may be restricted.