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Sexual signalling in female crested macaques and the evolution of primate fertility signals

James P Higham*, Michael Heistermann, Carina Saggau, Muhammad Agil, Dyah Perwitasari-Farajallah and Antje Engelhardt

BMC Evolutionary Biology 2012, 12:89  doi:10.1186/1471-2148-12-89

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