Department of Anthropology, Pennsylvania State University, University Park, United States; Department of Biology, Pennsylvania State University, University Park, United States; Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, United States
Department of Anthropology, University of Utah, Salt Lake City, United States; Global Change and Sustainability Center, University of Utah, Salt Lake City, United States
The use of stone tools by macaques in Thailand has reduced the size and population density of coastal shellfish; previously it was thought that tool-assisted overharvesting effects resulted uniquely from human activity.
