Rhesus monkeys (Macaca Mulatta) grooming on rock in Cayo Santiago, Puerto Rico. This material relates to a paper that appeared in the 11 August 2017, issue of Science, published by AAAS. The paper, by S.M. Landi at The Rockefeller University in New York, NY, and colleagues was titled, "Two areas for familiar face recognition in the primate brain."
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