Lifespan, longevity, and ageing
Maximum longevity: 73 years (captivity) Observations: The dugong may feature some form of continuous tooth development (Caleb Finch 1990). It is estimated that these animals live more than 50 years in the wild, with one estimate suggesting that they may live up to 73 years (Ronald Nowak 1999). Their longevity has not been studied in detail in captivity, but one animal was still alive after 25.3 years (Richard Weigl 2005).
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