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The maned wolf (Chrysocyon brachyurus) is the largest canid of South America. Its markings resemble those of foxes, but it is neither a fox nor a wolf. It is the only species in the genus Chrysocyon (meaning “golden dog”).

It is the largest canid in South America, with a weight between 20 and 30 kg, and reaches up to 90 cm at the withers. Its long, thin legs and dense reddish coat give it an unmistakable appearance. The maned wolf is a crepuscular and omnivorous animal adapted to the open environments of the South American savanna, with an important role in the seed dispersal of fruits, especially the wolf apple (Solanum lycocarpum). The maned wolf is a solitary animal. It communicates primarily by scent marking, but also gives a loud call known as “roar-barking”.

This mammal is found in open and semi open habitats, especially grasslands with scattered bushes and trees, in the Cerrado of south, central-west, and southeastern Brazil; Paraguay; northern Argentina; and Bolivia east and north of the Andes, and far southeastern Peru (Pampas del Heath only). It is very rare in Uruguay, possibly being displaced completely through loss of habitat. The International Union for Conservation of Nature lists it as near threatened, while it is considered a vulnerable species by the Brazilian Institute of Environment and Renewable Natural Resources.
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With medium-sized prey, such as roe deer or sheep, wolves kill by biting the throat, severing nerve tracks and the carotid artery, thus causing the animal to die within a few seconds to a minute. With small, mouselike prey, wolves leap in a high arc and immobilize it with their forepaws.[128] When prey is vulnerable and abundant, wolves may occasionally surplus kill. Such instances are common with domestic animals, but rare with wild prey. In the wild, surplus killing occurs primarily during late winter or spring, when snow is unusually deep (thus impeding the movements of prey)[129] or during the denning period, when den bound wolves require a ready supply of meat.[130] Medium-sized prey are especially vulnerable to surplus killing, as the swift throat-biting method allows wolves to kill one animal quickly and move on to another.[128]

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