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Gestation lasts 16 to 18 days for Syrian hamsters, 18 to 21 days for Russian hamsters, 21 to 23 days for Chinese hamsters and 23 to 30 for Roborovski hamsters. The average litter size for Syrian hamsters is about seven pups, but can be as great as 24, which is the maximum number of pups that can be contained in the uterus.
Mother hamsters that are older than 8 months for their first litter may have other kinds of pregnancy problems. [2] Mating a mother who is between 4-6 months old is a standard recommendation. [2] The age of the male hamster is less important, except that young males may have no interest in the female and older male hamsters may not be fertile. [2]
The average lifespan for the Roborovski hamster is 2–4 years, though this is dependent on living conditions (extremes being four years in captivity and two in the wild). [4] Roborovskis are known for their speed and have been said to run up to 6 miles a night. [ 5 ]
By 11 days of age, the cheek pouches are fully grown and can carry objects up to the size of a sunflower seed. [17] When the cheek pouches become full, they extend back to the shoulder blades, which restrict movement. [15] Campbell's dwarf hamster is prone to genetic abnormalities in the metabolism of carbohydrates and lipids.
A marsupial has a short gestation period, typically shorter than placental. For more information on how these estimates were ascertained, see Wikipedia's articles on gestational age. The gestation figures given here are shown in days. They represent average values and should only be considered as approximations.
Turkish hamsters are weaned from their mothers after three weeks of nursing. [4] After eight weeks of age, females are sexually mature, [4] but males do not mature until six months of age. [4] According to iucnredlist.org, Turkish hamsters have two to four litters of young per year, with four to 20 young per litter, averaging 10. [1]
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The golden hamster or Syrian hamster (Mesocricetus auratus) is a rodent belonging to the hamster subfamily, Cricetinae. [2] Their natural geographical range is in an arid region of northern Syria and southern Turkey. Their numbers have been declining in the wild due to a loss of habitat from agriculture and deliberate elimination by humans. [1]