It has the longest tail of any marmot, up to 28 centimetres, almost half its body length.
From Long-tailed Marmot
It can hibernate for up to eight months a year, emerging from the burrow only when the snow clears from the alpine meadows.
From Long-tailed Marmot
It can hibernate for up to six months a year, dropping its body temperature and its heart rate to only a few beats a minute.
From Alpine Marmot
That hibernation is the species' main cause of death.
From Yellow-bellied Marmot
It eats grasses, insects and the occasional bird's egg.
From Yellow-bellied Marmot
It lives on rocky mountain meadows of the western United States and Canada.
From Yellow-bellied Marmot
It hibernates as a group, huddled in a sealed chamber, and over those months its body temperature and heart rate fall drastically so as to burn as little of its reserves as possible.
From Himalayan Marmot
Its colonies are highly visible on the Tibetan uplands, where the animals stand up on their hind legs like sentries beside the burrow mouths.
From Himalayan Marmot

Ecosystems