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The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of the wolf. Also called the domestic dog , it was selectively bred from an extinct population of wolves during the Late Pleistocene by hunter-gatherers .
The Paleolithic dog was smaller than the Pleistocene wolf (Canis c.f. lupus) [1] and the extant grey wolf (Canis lupus), with a skull size that indicates a dog similar in size to the modern large dog breeds. The Paleolithic dog had a mean body mass of 36–37 kg (79–82 lb) compared to Pleistocene wolf 42–44 kg (93–97 lb) and recent ...
10 of the 13 extant canid genera left-to-right, top-to-bottom: Canis, Cuon, Lycaon, Cerdocyon, Chrysocyon, Speothos, Vulpes, Nyctereutes, Otocyon, and Urocyon Canidae is a family of mammals in the order Carnivora, which includes domestic dogs, wolves, coyotes, foxes, jackals, dingoes, and many other extant and extinct dog-like mammals.
In 1758, the Swedish botanist and zoologist Carl Linnaeus assigned the genus name Canis (which is the Latin word for "dog") [13] to the domestic dog, the wolf, and the golden jackal in his book, Systema Naturae. He classified the domestic dog as Canis familiaris and, on the next page, classified the grey wolf as Canis lupus. [2]
The study found that three ancient Belgium canids (the 36,000 YBP "Goyet dog" cataloged as Canis species, along with two specimens dated 30,000 YBP and 26,000 YBP cataloged as Canis lupus) formed an ancient clade that was the most divergent group. The study found that the skulls of the "Goyet dog" and the "Altai dog" had some dog-like ...
The taxonomic classification of Canis lupus in Mammal Species of the World (3rd edition, 2005) listed 27 subspecies of North American wolf, [7] corresponding to the 24 Canis lupus subspecies and the three Canis rufus subspecies of Hall (1981). [1] The table below shows the extant subspecies, with the extinct ones listed in the following section.
In the third edition of Mammal Species of the World published in 2005, the mammalogist W. Christopher Wozencraft listed under the wolf Canis lupus the taxon "familiaris Linneaus, 1758 [domestic dog]". Wozencraft then listed Canis pacificus C. E. H. Smith, 1839 as junior taxonomic synonym for the domestic dog. [2]
The frequencies of fracture ranged from a minimum of 2% found in the Northern Rocky Mountain wolf (Canis lupus irremotus) up to a maximum of 11% found in Beringian wolves. The distribution of fractures across the tooth row also differs, with Beringian wolves having much higher frequencies of fracture for incisors, carnassials, and molars.