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Sweet Dreams, Yellow-Bellied Marmot

Nature Detectives

If you were a marmot, you would be going to bed about now and you wouldn’t get up until at least April or maybe May! Your breathing and heartbeat would sloooooow way down and your body temperature would begin to drop. Zzzzzzzzz.

Yellow-bellied marmots are Boulder County’s largest ground squirrels. They spend about eight months of every year hibernating in their underground burrows. As they sleep through chilly days and nights, their bodies use up fat the marmots packed on during the summer.

On fair weather days during the other four months, they gorge on grasses and flowers. Marmots need to almost double the amount of fat on their bodies to survive their long hibernation. Marmots are such sleepyheads, they frequently nap between meals. If days get too hot, they may head to their burrow for a deep summer sleep. They better not sleep too long because they need to eat and eat before fall arrives.

Marmot, Wake Up! Get Going On Your Daily Schedule!

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