Chimpanzees (<i>Pan troglodytes</i>) in U.S. Zoos, Sanctuaries, and Research Facilities: A Survey-Based Comparison of Species-Typical Behaviors by Andrea W. Clay, Stephen R. Ross, Susan Lambeth, Maribel Vazquez, Sarah Breaux, Rhonda Pietsch, Amy Fultz, Michael Lammey, Sarah L. Jacobson, Jaine E. Perlman, Mollie A. Bloomsmith

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