Both! Beavers have long hairs called guard hairs which the beavers thick fur underneath. These furs are heavy and help the beaver stay warm in the icy water. The beaver combs the hairs with its split claw on the hind legs. AnswerParty on!
The fur trade is a worldwide industry dealing in the acquisition and sale of animal fur. Since the establishment of a world fur market in the early modern period, furs of boreal, polar and cold temperate mammalian animals have been the most valued. Historically the trade had a large impact on the exploration and colonization of Siberia, northern North America and the South Shetland and South Sandwich Islands. Today the importance of the fur trade has diminished and is currently centered around fur farms and regulated furbearer trapping, but remains controversial. Several animal rights organizations oppose the fur trade, while supporters often cite their methods as not being cruel, that the animal populations are abundant, and their rights to practice a traditional lifestyle should be respected. The use of fur has been partly substituted by synthetic imitations.
North American Beaver
Coat is the nature and quality of a mammal's pelage. It is important to the animal fancy in the judging of the animal, particularly at conformation dog shows, cat shows and horse shows. It may also be used as a standard to evaluate the quality of care and management used by the animal hander, such as in horse showmanship.
The pelage of a show animal may be divided into different types of hair, fur or wool with a texture ranging from downy to spiky; in addition the animal may be single-coated or may have a number of coats, such as an undercoat and a topcoat (made up of guard hairs; also called outer coat and, sometimes, overcoat). The state of the coat is considered an indication of the animal's breeding and health.
The North American beaver (Castor canadensis) is one of two extant beaver species. It is native to North America and introduced to Patagonia in South America and some European countries (e.g. Norway). In the United States and Canada, the species is often referred to simply as "beaver", though this causes some confusion because another distantly related rodent, Aplodontia rufa, is often called the "mountain beaver". Other vernacular names, including American beaver and Canadian beaver, distinguish this species from the other extant beaver species, Castor fiber, which is native to Eurasia.
Beaver dams are dams built by beavers to provide ponds as protection against predators such as coyotes, wolves, and bears, and to provide easy access to food during winter. These structures modify the natural environment in such a way that the overall ecosystem builds upon the change, making beavers a keystone species. Beavers work at night and are prolific builders, carrying mud and stones with their fore-paws and timber between their teeth. Beavers can rebuild primary dams overnight, though they may not defend secondary dams as vigorously.