August 26, 2026
Fat Marmot Week Invites You To Vote for the “Chonkiest” Hibernator of All
For yellow-bellied marmots in the Rocky Mountains, an ideal “summer bod” means gaining as much weight as possible. The alpine rodents have been busy bulking up in preparation for winter hibernation, when they’ll spend seven to eight months underground in a deep slumber. They’ll survive solely on their own fat reserves until they emerge again in April or May, making them the largest “true hibernators.
