CZ:Ref:DOI:10.1086/204350

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Aiello, L.C. & P. Wheeler (1995), "The Expensive-Tissue Hypothesis: the Brain and the Digestive System in Human and Primate Evolution", Current Anthropology 36 (2): 199-221, DOI:10.1086/204350 [e]

Proposed that the energetic costs of the resting metabolism of different organs within the body have to be balanced. Specifically, such a trade-off is hypothesized to have governed the increasing brain size during primate and human evolution, in concert with a decrease in the amount of digestive tissue.