Secrets of Marmot Hibernation

A family of marmots prepares for their upcoming hibernation in a den 6 feet underground. Please LIKE and SUBSCRIBE if you enjoyed it! http://bit.ly/1Adl6ht *More info & videos below* “The Alps: Winter's Fortress“ premieres January 20, 2021, at 8|7c on PBS. --------------- For full NATURE episodes, check out http://www.pbs.org/wnet/nature/episodes/ Facebook:   / pbsnature   Twitter:   / pbsnature   Tumblr:   / pbsnature   Instagram:   / pbs_nature   ----------------- Nature is a production of THIRTEEN for PBS. Throughout its history, Nature has brought the natural world to millions of viewers. The PBS series has been consistently among the most-watched primetime series on public television. ----------------- 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. ----------------- More videos: How an Egg Hatches - https://bit.ly/2J2TfLB Bear Cub Check Up - https://bit.ly/3063a8H Meet One of the Rarest Frogs on Earth - https://bit.ly/2XkSztD The Wild Horses that Beat Extinction: https://bit.ly/2XiysaK Studying Tree Kangaroos - https://bit.ly/2YnAveRTwitter: http://www.twitter/pbsnature FOLLOW PBS: Facebook:   / pbs   Twitter:   / pbs   Instagram:   / pbs   Shop: http://www.shop.pbs.org/