Its diet included more C4 biomass than any other hominin studied to date, including its congener Paranthropus robustus from South Africa. These results, coupled with recent evidence from dental microwear, may indicate that the remarkable craniodental morphology of this taxon represents an adaptation for processing large quantities of low-quality vegetation rather than hard objects.Cerling et al. 2011. Diet of Paranthropus boisei in the early Pleistocene of East Africa. PNAS 108:9337-9341.
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