Quick answer
Yaks (Bos grunniens) typically live around About 20 years. Wild averages fall when predation, disease, or habitat loss rise; managed populations can live longer with stable food and veterinary care.
Key takeaway
Yaks (Bos grunniens) typically live around About 20 years. Wild averages fall when predation, disease, or habitat loss rise; managed populations can live longer with stable food and veterinary care.
Yak lifespan in the wild
Field and museum records place most yaks near About 20 years. That figure blends ages at death across regions, so treat it as a planning range. Body size (300–1,000 kg (660–2,200 lb)) and risk lifestyle both shape the average.
What shortens yak lives
Predation, infectious disease, injury, food shortages, and habitat fragmentation cut survival. Roadkill and human conflict matter wherever yaks share landscapes with people.
What helps yaks 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.
Yak 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 yaks in the field.
Wild yaks
Wild yaks are much larger and darker than their domestic cousins, with bulls standing around 2 m (6.5 ft) at the shoulder. They roam remote, treeless uplands in herds and are far more formidable, capable of defending themselves against wolves.
Conservation
While domestic yaks number in the millions, the wild yak is listed as Vulnerable, reduced by hunting and by competition and interbreeding with domestic herds. Remote protected areas on the Tibetan Plateau are key to the wild yak's future.
Sources
Yak FAQs
How long do yaks live?
Yaks (Bos grunniens) typically live around About 20 years. 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 yak?
Bos grunniens — used in research and conservation listings for yaks.
What do yaks eat?
Yaks are described as herbivores, with seasonal and regional variation in High mountain plateau and alpine tundra.
Where do yaks live?
They are associated with High mountain plateau and alpine tundra. Local presence depends on food, cover, and human land use.
What is the conservation status of yaks?
Listed in our guides as Vulnerable. Check the IUCN Red List and national assessments for the latest formal category.