### Identification The Alaska Marmot is the "shadow" of the high north. Unlike its cousin, the Hoary Marmot, *Marmota broweri* lacks the white patch on the bridge of the nose. Instead, look for a distinctively dark, "sooty" appearance. They possess a charcoal-gray to blackish dorsal coat, often grizzled with silver-tipped guard hairs, and a dark cap that extends down to the eyes. They are stocky, weighing up to 10 pounds, with small, rounded ears tucked into their dense fur to minimize heat loss in the Arctic chill.
### Habitat & Range This is a true specialist of the Brooks Range in Northern Alaska. You won’t find them in the lowlands; they are strictly residents of high-altitude talus slopes and rocky scree fields. They favor the interface between rugged boulder piles—which provide perfect escape tunnels—and lush alpine meadows rich in forage.
### Behaviour Observers will likely first hear the Alaska Marmot before seeing it. They are highly social and maintain a "sentinel" system; one individual perches on a prominent boulder to scan for golden eagles or wolves, letting out a sharp, piercing whistle to signal danger. They are masters of the "Arctic nap," spending up to eight months in communal hibernacula. In the brief summer, you’ll see them sunning themselves on flat rocks to thermoregulate after a morning of foraging.
### Diet They are dedicated herbivores with a "summer gluttony" strategy. They forage intensely on grasses, sedges, flowering forbs, and even lichens. Because their active window is so short, they must double their body weight in a few months to survive the long winter.
### Fascinating Fact The Alaska Marmot is a master of social etiquette! To reinforce colony bonds, individuals perform a "nose-to-nose" greeting, touching muzzles and sniffing one another's cheeks when they meet on the tundra—a charmingly tender display for such a rugged mountain survivor.