Fuegian dog

[4] Romina Petrigh and Martín Fugassa conducted a genetic investigation in 2013 using hair samples from taxidermized specimens of Fuegian dogs, belonging to a collection of the Fagnano Regional Museum, in Rio Grande.

[2] Fuegian dogs had erect ears, sharp snout, longer straight fur, and a thick tail and were tawny-colored or entirely white.

[11] It was described by French navigator Louis-Ferdinand Martial [fr; es], who headed the 1883 scientific expedition to Cape Horn, as "ugly, with long tawny hair and a sharp snout, it looks quite like a fox".

Julius Popper, one of the primary perpetrators of the genocide against the local indigenous population, wrote that: "I never saw them, no matter how large their number, take an aggressive attitude or defend their masters when these were in danger".

Upon speaking to the local people and inquiring about what had happened to the animals, he was told that the entire known population of them had been exterminated, and it was claimed they "were dangerous to men and cattle".

[17] Apparently, this "fierce" nature of the animal was allegedly witnessed by Thomas Bridges in the 1880s, who in his writings, purported that the dogs attacked his mission's goats, while giving few specific details.