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Article

An adaptive threshold in mammalian neocortical evolution.

PLoS biology - 1 Nov 2014

Lewitus Eric, Kelava Iva, Kalinka Alex T, Tomancak Pavel, Huttner Wieland B

Abstract excerpt

Expansion of the neocortex is a hallmark of human evolution. However, determining which adaptive mechanisms facilitated its expansion remains an open question. Here we show, using the gyrencephaly index (GI) and other physiological and life-history data for 102 mammalian species, that gyrencephaly is an ancestral mammalian trait. We find that variation in GI does not evolve linearly across species, but that...

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Identifiers

PMID: 25405475
DOI: 10.1371/journal.pbio.1002000
PMCID: PMC4236020

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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