Yellow-bellied Marmot

Description:

Yellow-bellied marmots usually weigh from 1.6 to 5.2 kilograms (3.5 to 11.5 lb) when fully grown, though males typically weigh more than females. Adult males typically weigh between 3 to 5 kilograms (6.6 to 11.0 lb); females typically weigh between 1.6 to 4 kilograms (3.5 to 8.8 lb). They have a brown coat, a white patch of fur between the eyes, a reddish-brown tail, and a yellow belly, from which they get their name. Their ears are small and round, and they have a short white muzzle with a black nose. They get fatter in the autumn just before hibernating.