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Mule deer

Mule deer lifespan and age in human years

Longest recorded 22 years

🏆 The longest-lived mule deer on record reached 22 years in captivity.

Mule deer (Odocoileus hemionus). The oldest known individual lived 22 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

Mule deer age chart in human years

Shaded rows are equivalent to human age 60+.

Mule deerHuman ageStage
1 yr14Teen
2 yr21Adult
3 yr26Adult
4 yr31Adult
5 yr36Adult
6 yr41Middle age
7 yr46Middle age
8 yr51Middle age
9 yr56Middle age
10 yr61Senior
11 yr66Senior
12 yr71Senior
13 yr76Elderly
14 yr81Elderly
15 yr85Elderly
16 yr90Elderly
17 yr95Elderly
18 yr100Elderly
19 yr105Elderly
20 yr110Elderly
21 yr115Elderly
22 yr120Elderly
23 yr125Elderly
24 yr130Elderly
25 yr135Elderly
26 yr140Elderly
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Mule deer profile

ClassificationMammalia > Artiodactyla > Cervidae
Scientific nameOdocoileus hemionus
Adult weightabout 57 kg
Age of maturity16 months
Gestationabout 207 days
Litter / clutch size1.5
Longest recorded22 years (captivity)

Sources

How we convert ages: method.

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