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. 2022 Aug 8;377(1860):20210296. doi: 10.1098/rstb.2021.0296

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Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 2. — Socioecological complexity is positively associated with (a) neocortex ratio, (b) g_s, (c) group size, and (d) the composite general intelligence g_D score based on laboratory cognitive tests from Deaner et al. [64]. Only genus means are presented since Deaner et al. conducted analyses at the genus level.