Marine iguana lifespan and age in human years
Longest recorded 6.4 years
🏆 The longest-lived marine iguana on record reached 6.4 years in captivity.
Marine iguana (Amblyrhynchus cristatus). The oldest known individual lived 6.4 years; this chart maps that record to a human age of 120. Most individuals live considerably shorter lives than the record.
- Adult weight about 2.23 kg
How old in human years?
Age
Marine iguana age chart in human years
Shaded rows are equivalent to human age 60+.
| Marine iguana | Human age | Stage |
|---|---|---|
| 6 mo | 9 | Child |
| 1 yr | 19 | Teen |
| 1 yr 6 mo | 28 | Adult |
| 2 yr | 38 | Adult |
| 2 yr 6 mo | 47 | Middle age |
| 3 yr | 56 | Middle age |
| 3 yr 6 mo | 66 | Senior |
| 4 yr | 75 | Elderly |
| 4 yr 6 mo | 84 | Elderly |
| 5 yr | 94 | Elderly |
| 5 yr 6 mo | 103 | Elderly |
| 6 yr | 112 | Elderly |
Marine iguana profile
| Classification | Reptilia > Squamata > Iguanidae |
|---|---|
| Scientific name | Amblyrhynchus cristatus |
| Adult weight | about 2.2 kg |
| Longest recorded | 6.4 years (captivity) |
Sources
How we convert ages: method.
More Reptiles & amphibians
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Bearded dragonLifespan about 9 years
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Corn snakeLifespan about 15 years
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Pacman frog (horned frog)Lifespan about 10 years
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Japanese rat snakeLifespan up to 13.1 years (record)
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