Biodemography and Evolution Jaeggi, A.V., Hooper, P., Caldwell Hooper, A.E., Gurven, M.D., Lancaster, J.B., Kaplan, H.S. 2017. (Edited by M. Muller, R. Wrangham, D. Pilbeam). Cambridge, MA: Harvard Press. Pp. 548-571. 2017 Michael Gurven