Lifespan, longevity, and ageing
Maximum longevity: 46 years (captivity) Observations: With a 3.5 months period of delayed implantation, the total gestation lasts 11 months (Ronald Nowak 2003). In the wild, these animals have been reported to live up to 46 years (Bernhard Grzimek 1990), which is plausible. Little is known about their longevity in captivity, but one wild born specimen was about 14.4 years old when it died in captivity (Richard Weigl 2005).
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