Journal
SCIENCE
Volume 314, Issue 5801, Pages 980-982Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1133827
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Traditional methods of dietary reconstruction do not allow the investigation of dietary variability within the lifetimes of individual hominins. However, laser ablation stable isotope analysis reveals that the delta C-13 values of Paranthropus robustus individuals often changed seasonally and interannually. These data suggest that Paranthropus was not a dietary specialist and that by about 1.8 million years ago, savanna-based foods such as grasses or sedges or animals eating these foods made up an important but highly variable part of its diet.
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