M. Waller, Bridget Peirce, Kate Mitchell, Heidi Micheletta, Jerome Overview of the Macaque Study Centre. <p>A) Macaque island, B) viewing point to the macaque island, C) macaque inside enclosure, D) research area where the scientist can be seen working with the macaques, E) facial expression sign with interactive flaps, and F) the researcher collecting observational and questionnaire data.</p> macaque 2012-09-13
    https://plos.figshare.com/articles/figure/_Overview_of_the_Macaque_Study_Centre_/247746
10.1371/journal.pone.0044680.g001