The three papers cited below were jointly the most frequently cited papers in 2015 among those published in Primates during the period from 2013 to 2014. Their authors thus contributed greatly to enhancing the reputation of our journal. For this achievement, each lead author will receive gifts from the Japan Monkey Centre, the Primate Society of Japan, and Springer. Co-authors will receive declarations attesting to their contributions.

10 July 2016

Tetsuro Matsuzawa::

Executive Director, Japan Monkey Centre

Editor-in-Chief, Primates

Masayuki Nakamichi::

President, Primate Society of Japan

Peter Butler::

Editorial Director, Springer