What is the maximal age a Northern birch mouse reaches?
An adult Northern birch mouse (Sicista betulina) usually gets as old as 4 years.
Northern birch mouses are around 31 days in the womb of their mother. When born, they weight 24 grams (0.05 lbs) and measure 4 cm (0′ 2″). As a member of the Dipodidae family (genus: Sicista), a Northern birch mouse caries out around 4 little ones per pregnancy, which happens around 1 times a year. Fully grown, they reach a bodylength of 18.5 cm (0′ 8″).
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 northern birch mouse (Sicista betulina) is a small rodent about 5 to 8 cm long (without the tail), weighing 5 to 13 g. It lives in northern Europe and Asia in forest and marsh zones.It hibernates in burrows. It eats shoots, grains, berries, and sometimes insects.
Animals of the same family as a Northern birch mouse
Not really brothers and sisters, but from the same biological family (Dipodidae):
- Baluchistan pygmy jerboa with 2 babies per pregnancy
- Woodland jumping mouse becoming 4 years old
- Four-toed jerboa bringing the scale to 52 grams
- Bobrinski’s jerboa with 5 babies per pregnancy
- Lesser Egyptian jerboa becoming 6 years old
- Greater Egyptian jerboa with 2 babies per pregnancy
- Altai birch mouse with 3 babies per pregnancy
- Greater fat-tailed jerboa with 5 babies per pregnancy
- Lesser fat-tailed jerboa with 5 babies per pregnancy
- Western jumping mouse with 5 babies per pregnancy
Animals that reach the same age as Northern birch mouse
With an average age of 4 years, Northern birch mouse are in good companionship of the following animals:
- Desert hedgehog usually reaching 4.5 years
- Pallas’s pika usually reaching 4 years
- Black rat usually reaching 4.17 years
- Northern pocket gopher usually reaching 3.75 years
- Sand-colored soft-furred rat usually reaching 4 years
- Japanese shrew mole usually reaching 3.5 years
- Lesser mole-rat usually reaching 4.5 years
- Greater cane rat usually reaching 4.25 years
- Black-footed tree-rat usually reaching 3.83 years
- Southwestern water vole usually reaching 3.5 years
Animals with the same number of babies Northern birch mouse
The same number of babies at once (4) are born by:
- Greater hamster-rat
- African grass rat
- Long-tailed giant rat
- Rock squirrel
- Sonoma chipmunk
- Caucasian squirrel
- Barbary striped grass mouse
- Giant naked-tailed rat
- New England cottontail
- Olympic marmot
Weighting as much as Northern birch mouse
A fully grown Northern birch mouse reaches around 8 grams (0.02 lbs). So do these animals:
- Gambian slit-faced bat with 7 grams
- Lesser long-tailed shrew tenrec with 8 grams
- Brown long-eared bat with 8 grams
- Lesser long-fingered bat with 7 grams
- Southern pygmy mouse with 9 grams
- Daubenton’s bat with 7 grams
- Bobrinski’s serotine with 7 grams
- Fischer’s little fruit bat with 9 grams
- Brazilian brown bat with 9 grams
- Antillean ghost-faced bat with 8 grams