Hibernation in Black Bears: Independence of Metabolic Suppression from Body Temperature

@article{Tien2011HibernationIB,
  title={Hibernation in Black Bears: Independence of Metabolic Suppression from Body Temperature},
  author={{\O}ivind T{\o}ien and John I. Blake and Dale M. Edgar and Dennis A. Grahn and H. Craig Heller and Brian M. Barnes},
  journal={Science},
  year={2011},
  volume={331},
  pages={906 - 909}
}
  • Øivind Tøien, John I. Blake, +3 authors Brian M. Barnes
  • Published 2011
  • Biology, Medicine
  • Science
  • Black bears hibernate for 5 to 7 months a year and, during this time, do not eat, drink, urinate, or defecate. [...] Key Result Heart rates were reduced from 55 to as few as 9 beats per minute, with profound sinus arrhythmia. After returning to normal body temperature and emerging from dens, bears maintained a reduced metabolic rate for up to 3 weeks. The pronounced reduction and delayed recovery of metabolic rate in hibernating bears suggest that the majority of metabolic suppression during hibernation is…Expand Abstract

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