Encephalisation is not a universal macroevolutionary phenomenon in mammals but is associated with sociality

Evolutionary encephalization, or increasing brain size relative to body size, is assumed to be a general phenomenon in mammals. However, despite extensive evidence for variation in both absolute and relative brain size in extant species, there have been no explicit tests of patterns of brain size ch...

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Bibliographic Details
Main Authors: Shultz, S, Dunbar, R
Format: Journal article
Published: National Academy of Sciences of the United States of America 2010