Dictionary of Human Evolution and Biology

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Dietary Hypothesis

Model proposed by John T. Robinson in the 1960s that argues for the existence of two contemporary hominid lineages during the Plio-Pleistocene, each with contrasting ecological adaptations. One group of hominids is characterized by an adaptation to an herbivorous diet, and a second group by an adaptation to a omnivorous diet.

See the two-hominid theory; cf. the single species hypothesis.

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