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Bear Hibernation Insights

Research reveals that bears enter a state of torpor during winter, dropping their body temperature to around 32-33 degrees but do not experience the periodic arousals typical of smaller hibernators. Unlike smaller species, bears maintain REM and non-REM sleep throughout hibernation and lose their circadian rhythms, which gradually return in spring. This groundbreaking study sheds light on the unique adaptations of bears during their winter months.