The Mountain Weasel is a small weasel found in the alpine heights of Asia. It resides in Mongolia, China, Kazakhstan, Nepal, and Russia, easily navigating the rocky terrain. 

Despite its size, it plays a significant role in its ecosystem due to its slender and agile body. Its fur changes color in winter, turning white to blend with the snow-filled landscape. This adaptation helps it survive harsh weather conditions. 

Mountain Weasels are opportunistic eaters and primarily feed on pikas and voles. However, they also consume birds, eggs, insects, and small mammals when possible.