Reply to Zefferman et al.: Cultural institutions can provide adaptive benefits for costly cooperation.
Department of Human Evolutionary Biology, Harvard University, Peabody Museum, Cambridge, MA 02138 glowacki@fas.harvard.edu.
Luke
L
Glowacki
Department of Human Evolutionary Biology, Harvard University, Peabody Museum, Cambridge, MA 02138.
Richard
R
Wrangham
D000818:Animals; D005006:Ethnicity / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D012098:Reproduction; D014857:Warfare