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What we didn 't know about hibernating black bears Biodiversity EarthSky

What we didn 't know about hibernating black bears Biodiversity EarthSky 2025

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A groundbreaking study monitored Alaskan black bears during their winter hibernation, revealing that their body temperature fluctuated between 30 and 36 degrees Celsius while functioning at only 25% of their active metabolic rate. Unlike other hibernating animals, these bears did not experience a significant drop in body temperature and took two to three weeks to return to normal metabolic levels after awakening. The findings suggest unique physiological adaptations that could inform medical advancements for humans.

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