“…Many studies focus on describing defects in modern populations (Badger, 1985;Drummond et al, 1992;Duncan et al, 1988Duncan et al, , 1994Jørgensen, 1956;Li et al, 1995;Lukacs, 1991;Lukacs et al, 2001b;Lunardelli and Peres, 2006;Montero et al, 2003;Nation et al, 1987;Needleman et al, 1991;Rasmussen et al, 1992;Silberman et al, 1991;Skinner et al, 1994;Slayton et al, 2001), in prehistoric populations (Griffin and Donlon, 2008;Halcrow and Tayles, 2008;Jørgensen, 1956;Lukacs, 1999b;Lukacs et al, 2001a;Lukacs and Walimbe, 1998;Skinner, 1996;Skinner and Newell, 2000), and in modern and archaeological ape samples (Lukacs, 1999a(Lukacs, , 2001aSkinner and Newell, 2003). This literature is comparative and emphasizes etiology rather than direct interpretation of population-based data in archaeological settings -with some notable exceptions (Lukacs, 1999b;Lukacs et al, 2001a;Lukacs and Walimbe, 1998;Skinner, 1996;Skinner and Newell, 2000).…”