Heart-beat of the Hibernating Hedgehog

@article{Suomalainen1951HeartbeatOT,
  title={Heart-beat of the Hibernating Hedgehog},
  author={P. Suomalainen and Samuli Sarajas},
  journal={Nature},
  year={1951},
  volume={168},
  pages={211-211}
}
THE most characteristic feature of the physiology of hibernation is the changing of a homoiothermic mammal within certain limits into a poikilothermic animal. Thus, for example, the body temperature of the hedgehog may decrease during hibernation to about 2° C. When the animal wakes from hibernation, its body temperature rises in some hours from 2°–5° C. to 30°–35° C. again, and the animal returns to homoiothermy. 
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