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The Syrian hamster is one of only few exceptions to this activity. It has been found that the arcuate nucleus, ventromedial nucleus, and dorsomedial nucleus are all involved in the presence of FAA, and that Syrian hamsters in the laboratory do not demonstrate FAA because of the presence of light and the typical light cycles used in experiments.
Hamster shows feature an exhibition of the hamsters participating in the judging. [28] The judging of hamsters usually includes a goal of promoting hamsters which conform to natural or established varieties of hamsters. [28] By awarding hamsters which match standard hamster types, hamster shows encourage planned and careful hamster breeding. [28]
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]
Mesocricetus is a genus of Old World hamsters, including the Syrian or golden hamster, the first hamster to be introduced as a domestic pet, and still the most popular species of hamster for that purpose. Recent research has shown that, unlike almost all other land mammals studied, all species of this genus lack the capacity for color vision. [2]
A model for creating a chronically ill hamster which will not die from the ulcers is to give naproxen by gavage. [55] When the hamster is chronically ill, it can be used to test anti-ulcer drugs. [55] Syrian hamsters are also widely used in research into alcoholism, by virtue of their large livers, and ability to metabolise high doses. [56]
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Animal non-reproductive sexual behavior encompasses sexual activities that non-human animals participate in which do not lead to the reproduction of the species. Although procreation continues to be the primary explanation for sexual behavior in animals, recent observations on animal behavior have given alternative reasons for the engagement in sexual activities by animals. [1]
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