Secrets of Marmot Hibernation
Clip: Season 39 Episode 8 | 2m 41sVideo has Closed Captions
A family of marmots prepares for their upcoming hibernation in a den 6 feet underground.
A family of marmots prepares for their upcoming hibernation in a den 6 feet underground. As they prepare for their 6-month sleep, marmots dramatically lower their body temperature and survive on their body’s storage of fat and water. They only wake once every 2 weeks to rev up their heartbeat and visit a nearby tunnel used as a toilet.
Major support for NATURE is provided by The Arnhold Family in memory of Henry and Clarisse Arnhold, The Fairweather Foundation, Sue and Edgar Wachenheim III, Charles Rosenblum, Kathy Chiao and...
Secrets of Marmot Hibernation
Clip: Season 39 Episode 8 | 2m 41sVideo has Closed Captions
A family of marmots prepares for their upcoming hibernation in a den 6 feet underground. As they prepare for their 6-month sleep, marmots dramatically lower their body temperature and survive on their body’s storage of fat and water. They only wake once every 2 weeks to rev up their heartbeat and visit a nearby tunnel used as a toilet.
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Preview of The Alps: Winter's Fortress
Video has Closed Captions
Experience the hostile and bitter cold ecosystems of the Alps, shaped by snow blizzards. (30s)
Video has Closed Captions
Among the chamois in the Alps, the mood is tense. (2m 58s)
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Major support for NATURE is provided by The Arnhold Family in memory of Henry and Clarisse Arnhold, The Fairweather Foundation, Sue and Edgar Wachenheim III, Charles Rosenblum, Kathy Chiao and...