Monkeys Chimpanzees Gorillas Orangutans Macaques Rhesus Monkeys Rhesus Macaques Baboons Conservation Capuchin Monkeys Spider Monkeys Monkey Species Rhesus Macaque Great Apes Monkey Behavior Bonobos Gibbons Japanese Macaque Behavior Japanese Macaques Langurs Endangered Species Research Animals Health Risks De Brazza's Monkey Colobus Monkeys Patas Monkey Transport Pied Tamarins Nonhuman Primates Mandrills Social Behavior Chacma Baboons Marmosets Monkey Theft Toque Macaque Monkey Macaque Monkeys Bushmeat Apes South American Monkeys Hoolock Gibbons Cotton-top Tamarin Golden Lion Tamarin Species Threats Sakis Lemurs Parenting Behavior Human-Wildlife Interaction Barbary Macaques Bärenstummelaffen Pygmy Slow Loris Francois Langur Laboratory Animals
Refuge staff say the lone survivor could not reenter a research program after spending about a week outdoors.