By Penny, Malcolm
By Morris, Simon Conway
By Rachels, James
By Alcock, John
By Anderson, Walter Truett
By Godfrey-Smith, Peter
By Gottschall, Jonathan
By Wilkes, Sarah
By Gadagkar, Raghavendra
By McFarland, Dr David
By Morris, Desmond
By Ardrey, Robert
By Kenrick, Griskevicius
By Gould, James L., Gould, Carol Grant
By Flannery, Timothy, Schouten, Peter
By Wright, Robert
By Kurtén, Bjorn
By Brasier, Martin
By Hansell, Mike
By Kershenbaum, Arik
By Nielsen, Claus
By Jared Diamond
By Carroll, Sean B.
By Raubenheimer, David, Simpson, Stephen J.