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Mountain hare

Mountain hare lifespan and age in human years

Longest recorded 18 years

🏆 The longest-lived mountain hare on record reached 18 years in the wild.

Mountain hare (Lepus timidus). The oldest known individual lived 18 years; this chart maps that record to a human age of 120. Most individuals live considerably shorter lives than the record.

How old in human years?

Age

Mountain hare age chart in human years

Shaded rows are equivalent to human age 60+.

Mountain hareHuman ageStage
1 yr20Teen
2 yr26Adult
3 yr31Adult
4 yr37Adult
5 yr43Middle age
6 yr49Middle age
7 yr55Middle age
8 yr61Senior
9 yr67Senior
10 yr73Senior
11 yr79Elderly
12 yr85Elderly
13 yr90Elderly
14 yr96Elderly
15 yr102Elderly
16 yr108Elderly
17 yr114Elderly
18 yr120Elderly
19 yr126Elderly
20 yr132Elderly
21 yr138Elderly
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Mountain hare profile

ClassificationMammalia > Lagomorpha > Leporidae
Scientific nameLepus timidus
Adult weightabout 4.2 kg
Age of maturity9 months
Gestationabout 50 days
Litter / clutch size2
Longest recorded18 years (wild)

Sources

How we convert ages: method.

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