Quick answer
Wild dugongs typically live around 70 years, though predation, disease, and habitat quality shift the average.
Lifespan in the wild
Most dugongs reach roughly 70 years under natural conditions. 70+ years; slow reproduction
Factors affecting longevity
Predators, disease, food scarcity, and human pressures all shape survival. Males and females may differ in average lifespan.
In captivity or as pets
With veterinary care and steady nutrition, dugongs sometimes live longer than wild averages — though wild longevity reflects natural ecology.
Oldest recorded individuals
Long-lived dugongs are rare in the wild; research and zoo records help set upper limits for the species.
Sources
FAQs
How long do dugongs live in the wild?
About 70 years on average.
What affects dugong lifespan?
Predation, habitat quality, disease, and food availability.
Do dugongs live longer in captivity?
Often yes, when nutrition and healthcare are consistent.
How can you tell a young dugong from an adult?
Size, markings, and behaviour change with age — see our full profile for detail.