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1�Cv.36, Developmental instability: causes and consequences (2003b) 279�C319) and compare the fit of Neandertal DFA Index values with those of modern humans. DFA estimates for each of the modern population samples exceeded measurement error, with Sulfatase the Inupiat exhibiting the highest levels of DFA for most tooth positions. All significant Neandertal z-scores were positive, exceeding the estimates for each of the modern prehistoric groups. Neandertals exhibited the fewest significant differences from the Inupiat (9.2% of values are significant at P Doxorubicin datasheet these morphological characters��Mt1 torsion, peroneal process length and thickness, and physiological abduction angle��have been used to reconstruct grasping ability and locomotor mode in the earliest fossil primates. Although these characters are prominently featured in debates on the origin and subsequent radiation of Primates, questions remain about their functional significance. This study examines the relationship between these morphological characters of the Mt1 and a novel metric of pedal grasping ability for a large number of extant taxa in a phylogenetic framework. Results indicate greater Mt1 torsion in taxa that engage in hallucal grasping and in those that utilize relatively small substrates more frequently. This study provides evidence that Carpolestes simpsoni has a torsion value more similar DAPT in vivo to grasping primates than to any scandentian. The results also show that taxa that habitually grasp vertical substrates are distinguished from other taxa in having relatively longer peroneal processes. Furthermore, a longer peroneal process is also correlated with calcaneal elongation, a metric previously found to reflect leaping proclivity. A more refined understanding of the functional associations between Mt1 morphology and behavior in extant primates enhances the potential for using these morphological characters to comprehend primate (locomotor) evolution. Am J Phys Anthropol, 2014. ? 2014 Wiley Periodicals, Inc.