Portuguese Water Dog In 413 CE, the Visigoths invaded Iberia before being settled in Aquitania north of the Pyrenees in 418, ultimately extending their rule to most of Iberia after 470 CE. A Portuguese Water Dog is first described in 1297 in a monk’s account of a drowning sailor who was pulled from the sea by a dog with a "black coat, the hair long and rough, cut to the first rib and with a tail tuft". These theories explain how the Poodle and the Portuguese Water Dog may have developed from the same ancient genetic pool. At one time the Poodle was
Jackal–dog hybrid problems, as well as an increase of genetic diseases after three generations of interbreeding between the hybrids, unlike with wolfdogs, which remain healthy and never become sterile. These "puchas" (poodle-jackals), like the "pucos" (poodle coyotes), exhibited much less domestic dog-like behaviour than the wolf-hybrids. During 1975, scientists at Russia's DS Likhachev Scientific Research Institute for Cultural Heritage and Environmental Protection began a breeding project in which they crossed golden jackals with huskies, to create an improved breed with the jackal's power of scent and the husky's resistance to cold. During recent years, Aeroflot has used one-quarter jackal hybrids, known as