What is the maximal age a Western harvest mouse reaches?
An adult Western harvest mouse (Reithrodontomys megalotis) usually gets as old as 1.5 years.
Western harvest mouses are around 23 days in the womb of their mother. When born, they weight 1 grams (0 lbs) and measure 57.5 cm (1′ 11″). As a member of the Muridae family (genus: Reithrodontomys), a Western harvest mouse caries out around 4 little ones per pregnancy, which happens around 4 times a year. Fully grown, they reach a bodylength of 6.9 cm (0′ 3″).
As a reference: Usually, humans get as old as 100 years, with the average being around 75 years. After being carried in the belly of their mother for 280 days (40 weeks), they grow to an average size of 1.65m (5′ 5″) and weight in at 62 kg (137 lbs), which is obviously highly individual.
The western harvest mouse (Reithrodontomys megalotis) is a small neotomine mouse native to most of the western United States. Many authorities consider the endangered salt marsh harvest mouse to be a subspecies, but the two are now usually treated separately.
Animals of the same family as a Western harvest mouse
Not really brothers and sisters, but from the same biological family (Muridae):
- Nephelomys auriventer bringing the scale to 60 grams
- Bushy-tailed hairy-footed gerbil with 3 babies per pregnancy
- Snow-footed Oldfield mouse bringing the scale to 54 grams
- Bush vlei rat with 1 babies per pregnancy
- Desert mouse with 3 babies per pregnancy
- Red tree vole with 2 babies per pregnancy
- Gray-bellied pencil-tailed tree mouse bringing the scale to 28 grams
- Norway lemming becoming 2 years old
- Setzer’s pygmy mouse bringing the scale to 6 grams
- Gray tree rat becoming 3.75 years old
Animals that reach the same age as Western harvest mouse
With an average age of 1.5 years, Western harvest mouse are in good companionship of the following animals:
- Panamanian spiny pocket mouse usually reaching 1.75 years
- Long-clawed shrew usually reaching 1.5 years
- Atlantic bamboo rat usually reaching 1.58 years
- Trowbridge’s shrew usually reaching 1.5 years
- Aegialomys galapagoensis usually reaching 1.67 years
- Cotton mouse usually reaching 1.25 years
- American water shrew usually reaching 1.5 years
- Southern red-backed vole usually reaching 1.67 years
- Arctic shrew usually reaching 1.5 years
- Brush mouse usually reaching 1.5 years
Animals with the same number of babies Western harvest mouse
The same number of babies at once (4) are born by:
- White-nosed coati
- Pale gerbil
- Turkestan rat
- Siberian zokor
- Woolly dormouse
- Bare-tailed woolly opossum
- Bat-eared fox
- Tamarisk jird
- North American least shrew
- Rock squirrel
Weighting as much as Western harvest mouse
A fully grown Western harvest mouse reaches around 10 grams (0.02 lbs). So do these animals:
- Chestnut long-tongued bat with 8 grams
- Lovat’s climbing mouse with 12 grams
- Peninsular horseshoe bat with 8 grams
- Tacarcuna bat with 12 grams
- Greater long-tailed shrew tenrec with 10 grams
- Drouhard’s shrew tenrec with 10 grams
- Brazilian brown bat with 9 grams
- Southern ningaui with 9 grams
- Gray climbing mouse with 9 grams
- Egyptian slit-faced bat with 9 grams
Animals as big as a Western harvest mouse
Those animals grow as big as a Western harvest mouse:
- Jamaican flower bat with 7 cm (0′ 3″)
- Eurasian pygmy shrew with 5.7 cm (0′ 3″)
- Winter white dwarf hamster with 7.9 cm (0′ 4″)
- Rhinolophus hilli with 6 cm (0′ 3″)
- Egyptian tomb bat with 7.2 cm (0′ 3″)
- Greater false vampire bat with 7.3 cm (0′ 3″)
- Plains pocket mouse with 6.9 cm (0′ 3″)
- Mediterranean water shrew with 7.5 cm (0′ 3″)
- Natal multimammate mouse with 6 cm (0′ 3″)
- Saint Lawrence Island shrew with 6.3 cm (0′ 3″)