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. 2020 Sep 3;66(5):505–514. doi: 10.1093/cz/zoaa051

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Published by Oxford University Press on behalf of Editorial Office, Current Zoology 2020. This work is written by US Government employees and is in the public domain in the US.

This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model)

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Figure 3. — Disparity of brain volumes through time. The mustard line is the volume of the entire brain and sensory regions, blue is the olfactory bulb scaled by total brain size, and red is the regions of the brain not associated with major primary sensory input: cerebrum, thalamus, midbrain, cerebellum, and medulla. The gray region of the figure is the confidence intervals from simulations modeling the total brain volume disparity as expected under Brownian motion and the dashed line is the mean value obtained from these simulations.