Arctic ground squirrel

rodent

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dormant behaviour

  • The image shows a group of Virginia big-eared bats sleeping upside down in a dark cavern.
    In dormancy: Causes of dormancy

    For example, the Arctic ground squirrel (whose winter period of dormancy is referred to as hibernation), when taken into the laboratory, supplied with adequate amounts of food and water, and exposed to constant temperature and light, exhibits periodic torpor (extreme sluggishness)—an innate behavioral pattern that operates independently of…

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