“…Initially build ing on ethnographic work by Hawkes (1991Hawkes ( , 1993 and others, McGuire (2002, see also Hildebrandt andMcGuire, 2003) proposed that the abundance of large prey varies through time in response to changes in social organization which alter the rewards associated with acquiring large prey. Later cast in the framework of Costly Signaling Theory (McGuire and Hilde brandt, 2005;McGuire et al, 2007;see Bliege Bird, 2007;Bliege Bird and Smith, 2005;Bliege Bird et al, 2001;Hawkes and Bliege Bird, 2002;Smith and Bliege Bird, 2000;Smith, 2004;Smith et al, 2000;Zahavi, 1975), the prestige hunting hypothesis predicts that an increase in group size or the frequency of social aggrega tions will lead to a synchronous increase in the benefits individuals gain from acquiring large game: as group size increases, a success ful hunters' audience increases as well, providing a greater poten tial payoff for signaling strategies.…”