Bornean Orangutan

Maximum longevity: 59 years (captivity) Observations: Like other great apes, orangutans appear to be long-lived. Even in the wild, these animals might live more than 50 years. One field study conducted in the *abelii* subspecies estimated maximum longevity in the wild to be at least 58 years for males and at least 53 years for females without any evidence of menopause (Wich et al. 2004). One wild born male was about 59 years old when he died in captivity (Richard Weigl 2005). Some authors consider *Pongo pygmaeus abelii* to be a separate species.