The long lives of primates and the ‘invariant rate of ageing’ hypothesis by Colchero, F, Aburto, J, Archie, EA, Boesch, C, Breuer, T, Campos, FA, Collins, A, Conde, DA, Cords, M, Crockford, C, Thompson, ME, Fedigan, LM, Fichtel, C, Groenenberg, M, Hobaiter, C, Kappeler, PM, Lawler, RR, Lewis, RJ, Machanda, ZP, Manguette, ML, Muller, MN, Packer, C, Parnell, RJ, Perry, S, Pusey, AE, Robbins, MM, Seyfarth, RM, Silk, JB, Staerk, J, Stoinski, TS, Stokes, EJ, Strier, KB, Strum, SC, Tung, J, Villavicencio, F, Wittig, RM, Wrangham, RW, Zuberbühler, K, Vaupel, JW, Alberts, SC