Old World harvest mouse lifespan and age in human years
Longest recorded 3.8 years
🏆 The longest-lived old world harvest mouse on record reached 3.8 years in captivity.
Old World harvest mouse (Micromys minutus). The oldest known individual lived 3.8 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 1 months
- Adult weight about 6 g
- Gestation about 20 days
- About 5.2 young at a time
How old in human years?
Age
Old World harvest mouse age chart in human years
Shaded rows are equivalent to human age 60+.
| Old World harvest mouse | Human age | Stage |
|---|---|---|
| 6 mo | 29 | Adult |
| 1 yr | 43 | Middle age |
| 1 yr 6 mo | 57 | Middle age |
| 2 yr | 70 | Senior |
| 2 yr 6 mo | 84 | Elderly |
| 3 yr | 98 | Elderly |
| 3 yr 6 mo | 112 | Elderly |
Old World harvest mouse profile
| Classification | Mammalia > Rodentia > Muridae |
|---|---|
| Scientific name | Micromys minutus |
| Adult weight | about 6 g |
| Age of maturity | 1 months |
| Gestation | about 20 days |
| Litter / clutch size | 5.2 |
| Longest recorded | 3.8 years (captivity) |
Sources
How we convert ages: method.
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