Yellow-Bellied Marmot, Mount Evans, ColoradoThere are fifteen different species of marmot that range throughout the world. This is the yellow-bellied marmot that inhabits high alpine regions of the Sierra and Rocky Mountains. September is the time of year that they start to hibernate. They’ll remain in hibernation for eight months, emerging from their burrows ready to fatten up again come April. I photographed this one years ago while searching for mountain goats on Mount Evans in Colorado.
Nikon D300 with Nikkor 200-400mm lens (at 350mm) ISO 400, f/5 at 1/250th of a second