Steller sea lion lifespan and age in human years
Longest recorded 32.8 years
🏆 The longest-lived steller sea lion on record reached 32.8 years in captivity.
Steller sea lion (Eumetopias jubatus). The oldest known individual lived 32.8 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 4.9 years
- Adult weight about 415 kg
- Gestation about 274 days
- About 1 young at a time
How old in human years?
Age
Steller sea lion age chart in human years
Shaded rows are equivalent to human age 60+.
| Steller sea lion | Human age | Stage |
|---|---|---|
| 5 yr | 18 | Teen |
| 10 yr | 37 | Adult |
| 15 yr | 55 | Middle age |
| 20 yr | 73 | Senior |
| 25 yr | 92 | Elderly |
| 30 yr | 110 | Elderly |
| 35 yr | 128 | Elderly |
Steller sea lion profile
| Classification | Mammalia > Carnivora > Otariidae |
|---|---|
| Scientific name | Eumetopias jubatus |
| Adult weight | about 4.2e+02 kg |
| Age of maturity | 4.9 years |
| Gestation | about 274 days |
| Litter / clutch size | 1 |
| Longest recorded | 32.8 years (captivity) |
Sources
How we convert ages: method.
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