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. 2017 Apr 3;15:26. doi: 10.1186/s12915-017-0369-3

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© Benton et al. 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1. — Evolving behaviors. Examples of genetically defined behaviors that differ between closely related species. Top: Differences in the use of wing “rowing” in the male courtship routine of drosophilid species, illustrated by chronophotography [17]. Bottom: Differences in burrow construction between Peromyscus deer mice species [10] (image credit: Brant Peterson and Hopi Hoekstra)