Mountain beavers are usually dark gray or brown, but their fur can range from slightly more reddish (rufa) to more blackish depending on subspecies, with a light patch under each ear. The animals have distinctively short tails. Adults weigh about 500–900 g (18–32 oz), with a few specimens topping 1,000 g (35 oz).

Mountain beavers, also called boomers, are 12 to 14 inches long and resemble large, overgrown hamsters or tailless muskrats. They have small ears and eyes, short, rudimentary tails, and large curved front claws that are used for digging, grasping, and climbing. Geographic range

Mountain beavers are usually dark gray or brown, but their fur can range from slightly more reddish (rufa) to more blackish depending on subspecies, with a light patch under each ear. The animals have distinctively short tails.

mountain beaver, (Aplodontia rufa), a muskrat-sized burrowing rodent found only in the Pacific Northwest of North America. Unlike the American and Eurasian beavers (genus Castor), the mountain beaver has an extremely short tail and is less than a half metre (1.6 feet) in length; weight is less than 2 kg (4.4 pounds).

The mountain beaver has an extremely short, fur-covered tail, and otherwise differs from the muskrat by possessing five-toed feet. It is dark brown with a small white spot at the base of each ear. In Oregon, are common in forested areas on the west slope of the Cascade Range west to the Pacific Ocean.

2024年5月27日 · Their tails are distinctively short, unlike North American and Eurasian beavers which have tails measuring up to 1.25 feet! The tail length is generally only between 0.37 and 1.57 inches. The mountain beaver has tiny eyes, small rounded ears, and opposable thumbs on each foot. This animal is known as one of the most ancient living rodents.

These mammals have grayish-brown fur with a small white patch behind each ear. They also have extremely short tails. Most adults measure about 15 in. long, but they may reach lengths up to 18 in. or so. The average weight of an adult is about 2 or 3 lbs. Learn more interesting facts and fun tidbits about this unique species, below.

2024年2月5日 · Mountain beavers are an unusual and primitive species of rodent. They are about the size of a muskrat, 10–12 inches (27–30 cm) long. However, they have a very short tail, less than one-half inch (1 cm) long. Mountain beavers live in underground burrows typically dug in dense thickets or in forest openings.

Also called a boomer or giant mole, the animal is a stout 12 – 14 inches long, and possesses a short, stubby tail. The tail, not much more than an inch long and tucked against the body, is pretty much invisible except on close inspection.

2016年9月15日 · This stocky burrowing animal is not a true beaver, but was so named because it severs branches and gnaws barks of trees in a way akin to beavers. Characterized by small eyes and ears, rudimentary tail, and curved front claws, the mountain beaver bears resemblance with tailless muskrats and large hamsters.