Grooming, kinship, and co-feeding in captive spider monkeys (Ateles geoffroyi)
Abstract 10.1002/zoo.1029.abs Allo-grooming is perhaps the most powerful affiliative behavior observed in non-human primates. However, the functional significance of grooming in New World monkeys has not yet been fully understood, perhaps because grooming is less frequently observed in platyrrhines. To differentiate the potential role of affiliative investment and/or kinship on sharing access to food (co-feeding) […]