A monkey’s lifespan is dependent on a number of factors, including the species it belongs to and its unique experiences as a pet or in a laboratory. For instance, cynomolgus monkeys (a.k.a., crab-eating macaques or long-tailed macaques) are one of the most prevalent species in research and live an average of 38 years in captivity. Vervet monkeys, popular as pets, can live up to 30 years in captivity. Primates Incorporated accepts monkeys of all ages, though we do require that males undergo a vasectomy prior to their arrival.