[2] It was closely related to the Falkland Islands wolf or warrah (Dusicyon australis), which descended from a population of D.

[4] Its diet seems to have been more carnivorous than extant foxes based on δ13C and δ15N values, probably mostly preying on small mammals but also scavenging on large carcasses.

[10] Charles Darwin in The Voyage of the Beagle stated that "many sealers, Gauchos, and Indians, who have visited these islands [the Falklands], all maintain that no such animal [the warrah] is found in any part of South America" suggesting that it was unlikely to have been alive at this time.

[12] In 1871 George Musters wrote a description of encountering a fox in Patagonia similar to a warrah, which may have been an account of this species.

[10] Dusicyon was used for ritual purposes by aboriginal peoples in the Late Holocene, and appears to have a high symbolic value[14] and its remains, usually teeth, are found in many archaeological sites.