Amazonian manatee lifespan and age in human years
Longest recorded 40 years
🏆 The longest-lived amazonian manatee on record reached 40 years in captivity.
Amazonian manatee (Trichechus inunguis). The oldest known individual lived 40 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 3 years
- Adult weight about 480 kg
- Gestation about 328 days
- About 1 young at a time
How old in human years?
Age
Amazonian manatee age chart in human years
Shaded rows are equivalent to human age 60+.
| Amazonian manatee | Human age | Stage |
|---|---|---|
| 5 yr | 24 | Adult |
| 10 yr | 37 | Adult |
| 15 yr | 51 | Middle age |
| 20 yr | 65 | Senior |
| 25 yr | 79 | Elderly |
| 30 yr | 92 | Elderly |
| 35 yr | 106 | Elderly |
| 40 yr | 120 | Elderly |
| 45 yr | 134 | Elderly |
Amazonian manatee profile
| Classification | Mammalia > Sirenia > Trichechidae |
|---|---|
| Scientific name | Trichechus inunguis |
| Adult weight | about 4.8e+02 kg |
| Age of maturity | 3 years |
| Gestation | about 328 days |
| Litter / clutch size | 1 |
| Longest recorded | 40 years (captivity) |
Sources
How we convert ages: method.
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