Lifespan, longevity, and ageing
Maximum longevity: 33 years (captivity) Observations: Normally, these animals do not live more than 20 years. In Chinese waters, however, they reach sexual maturity at later ages (4-10 years) and also live longer (Ronald Nowak 2003). One captive specimen lived for 28.8 years (Richard Weigl 2005).
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