Secrets of Marmot Hibernation

Clip: Season 39 Episode 8 | 2m 41s | Video has closed captioning.

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.

Aired: 01/20/21

Rating: NR

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Major support for NATURE is provided by The Arnhold Family in memory of Henry and Clarisse Arnhold, The Fairweather Foundation, the Kate W. Cassidy Foundation, Sue and Edgar Wachenheim III, …

Major support for NATURE is provided by The Arnhold Family in memory of Henry and Clarisse Arnhold, The Fairweather Foundation, the Kate W. Cassidy Foundation, Sue and Edgar Wachenheim III, Kathy Chiao and Ken Hao, the Filomen M. D’Agostino Foundation, Charles Rosenblum, the Lillian Goldman Charitable Trust, Sandra Atlas Bass, Doris R. and Robert J. Thomas, The Hite Foundation, The Arlene and Milton D. Berkman Philanthropic Fund, the Bradley L. Goldberg Family Foundation, The Sun Hill Family Foundation in memory of Susan and Edwin Malloy, by the Corporation for Public Broadcasting, by PBS, and by Viewers Like You.

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Secrets of Marmot Hibernation

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