Hellbender lifespan and age in human years
Longest recorded 29 years
🏆 The longest-lived hellbender on record reached 29 years in the wild.
Hellbender (Cryptobranchus alleganiensis). The oldest known individual lived 29 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 5 years
- Adult weight about 358 g
- Gestation about 72 days
How old in human years?
Age
Hellbender age chart in human years
Shaded rows are equivalent to human age 60+.
| Hellbender | Human age | Stage |
|---|---|---|
| 5 yr | 18 | Teen |
| 10 yr | 39 | Adult |
| 15 yr | 60 | Senior |
| 20 yr | 82 | Elderly |
| 25 yr | 103 | Elderly |
| 30 yr | 124 | Elderly |
Hellbender profile
| Classification | Amphibia > Caudata > Cryptobranchidae |
|---|---|
| Scientific name | Cryptobranchus alleganiensis |
| Adult weight | about 3.6e+02 g |
| Age of maturity | 5 years |
| Gestation | about 72 days |
| Litter / clutch size | 275 |
| Longest recorded | 29 years (wild) |
Sources
How we convert ages: method.
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