. 2017 Dec 27;59(2):113–122. doi: 10.1007/s10329-017-0642-7
© The Author(s) 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.
Fig. 4.
Japanese macaque washes wheat on Koshima beach (Photo by Akiko Takahashi)