Parental investment and body temperature explain encephalization in vertebrates.

Proc Natl Acad Sci U S A · 2025 · PMC12625846 · PMID 41183184

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highly significantno p-value reported

First, species were removed if their relative brain size was a highly significant outlier, defined as being less than 0.8 or greater than 1.2 times the expected value of the log brain on log body regression of specimens within a species.

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