Encephalisation quotient/Bibliography

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Based on large compilations of previously published cross-species data on brain weight (or skull volume for odontocetes) and body weight, the article concludes "that the encephalization level of Homo sapiens is still extraordinary relative to that of nonhuman species. Nevertheless, a subset of delphinid odontocetes are significantly more highly encephalized than the most highly encephalized anthropoid primates and narrow the gap in encephalization between humans and nonhumans substantially. These findings may have implications for comparative models of the relative importance of brain size versus brain organization for the evolution of intelligence."