American bison lifespan and age in human years

Longest recorded 33.5 years

🏆 The longest-lived american bison on record reached 33.5 years in captivity.

American bison (Bison bison). The oldest known individual lived 33.5 years; this chart maps that record to a human age of 120. Most individuals live considerably shorter lives than the record.

• Reaches adulthood at about 2.5 years
• Adult weight about 630 kg
• Gestation about 274 days
• About 1 young at a time