Quick answer
Dugongs (Dugong dugon) typically live around 70+ years; slow reproduction. Wild averages fall when predation, disease, or habitat loss rise; managed populations can live longer with stable food and veterinary care.
Key takeaway
Dugongs (Dugong dugon) typically live around 70+ years; slow reproduction. Wild averages fall when predation, disease, or habitat loss rise; managed populations can live longer with stable food and veterinary care.
Dugong lifespan in the wild
Field and museum records place most dugongs near 70+ years; slow reproduction. That figure blends ages at death across regions, so treat it as a planning range. Body size (230–400 kg (500–880 lb); males and females similar) and risk lifestyle both shape the average.
What shortens dugong lives
Predation, infectious disease, injury, food shortages, and habitat fragmentation cut survival. Roadkill and human conflict matter wherever dugongs share landscapes with people.
What helps dugongs live longer
Connected habitat, low chronic stress, and reliable food support longevity. For captive or domestic relatives, species-correct diet and veterinary screening matter more than generic “pet” advice.
Dugong life stages
Juveniles usually face higher mortality than prime adults. Older animals may move less, show dental wear, or lose body condition — useful signs when ageing dugongs in the field.
Cultural significance
Indigenous Australian communities and coastal peoples across the Indo-Pacific have long hunted dugongs for meat and oil, with cultural protocols in many areas. Today legal harvest, accidental drowning in fishing nets, and habitat degradation threaten remaining herds.
Conservation priorities
Listed Vulnerable, dugongs benefit from marine protected areas, speed limits for boats, and seagrass restoration. The Great Barrier Reef and Arabian Gulf hold significant populations. Entanglement in gillnets remains a leading cause of death in Southeast Asia.
Sources
Dugong FAQs
How long do dugongs live?
Dugongs (Dugong dugon) typically live around 70+ years; slow reproduction. Wild averages fall when predation, disease, or habitat loss rise; managed populations can live longer with stable food and veterinary care.
What is the scientific name of the dugong?
Dugong dugon — used in research and conservation listings for dugongs.
What do dugongs eat?
Dugongs eat seagrasses and algae, with seasonal and regional variation in Shallow coastal waters, bays, and seagrass meadows of the Indo-Pacific.
Where do dugongs live?
They are associated with Shallow coastal waters, bays, and seagrass meadows of the Indo-Pacific. Local presence depends on food, cover, and human land use.
What is the conservation status of dugongs?
Listed in our guides as Vulnerable. Check the IUCN Red List and national assessments for the latest formal category.