Quick answer
Most millipedes live around 1–10 years (varies by species), though predation, disease, habitat quality, and (for pets) veterinary care shift individual outcomes.
Key takeaway
Most millipedes live around 1–10 years (varies by species), though predation, disease, habitat quality, and (for pets) veterinary care shift individual outcomes.
Typical lifespan
Millipedes (Diplopoda) typically live around 1–10 years (varies by species). Published averages mix wild and managed populations, so treat any single number as a planning range rather than a guarantee.
What shortens life
In the wild, millipede mortality is driven by predation, competition, infectious disease, injury, and habitat loss. Food shortages and human conflict also cut average lifespan in many regions.
What supports longer life
Stable habitat, low chronic stress, and adequate nutrition support longevity. Where millipedes live alongside people, responsible management and veterinary care (for domestic or captive animals) matter as much as genetics.
Life stages
Juveniles face higher mortality than healthy adults. Seniors show slower movement, dental wear, and reduced body condition — useful field signs when comparing age classes.
How this compares
Body size and ecology shape longevity: larger mammals often live longer than small ones, but high-risk lifestyles (open hunting, migration) can reverse that pattern. Always compare like-with-like populations.
Body and legs
Millipedes have long, rounded, segmented bodies, and most segments carry two pairs of legs, which sets them apart from centipedes. This gives them dozens to hundreds of legs that move in graceful, rippling waves as they walk. Although the name means thousand legs, no species was known to truly exceed a thousand until a recently discovered Australian species finally surpassed it.
Diet and recycling
Millipedes are detritivores that feed mainly on decaying leaves, wood, and other rotting plant matter on the forest floor. By breaking down this material and returning nutrients to the soil, they play an important role as natural recyclers, much like earthworms. A few species also eat fungi or, rarely, living plant tissue.
Defense
Millipedes are slow and cannot bite or sting, so they rely on other defenses. When threatened, most curl into a tight spiral to protect their soft undersides and legs. Many species also release foul-smelling or irritating chemicals from special glands, and some produce compounds strong enough to deter or harm predators.
Habitat and life cycle
Millipedes live in soil, leaf litter, and rotting wood in damp habitats on every continent except Antarctica. They lay eggs in the soil, and the young hatch with few segments and legs, adding more each time they molt. Many species are long-lived for invertebrates, surviving several years in suitable conditions.
Research notes
Figures for millipedes (Diplopoda) come from field studies, museum records, and conservation assessments that do not always agree on exact averages. Prefer ranges over single-point claims, and check whether a source describes wild, captive, or mixed populations.
Practical takeaways
If you encounter millipedes in the wild, prioritise distance and local guidance. If you care for related domestic or captive animals, match diet and housing to species needs rather than generic pet advice. Share accurate status information (Least Concern) when discussing conservation.
Sources
FAQs
How Long Do Millipedes Live?
Most millipedes live around 1–10 years (varies by species), though predation, disease, habitat quality, and (for pets) veterinary care shift individual outcomes.
What is the scientific name of the millipede?
Diplopoda
What do millipedes eat?
Detritivore (decaying leaves and plant matter)
Where do millipedes live?
Soil and leaf litter worldwide
Are millipedes endangered?
Listed here as Least Concern. Check IUCN and national lists for the latest assessment.