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The family Canidae consists of 37 extant species belonging to 13 genera and divided into 194 extant subspecies, as well the extinct genus Dusicyon, comprising two extinct species, and 13 extinct wolf subspecies, which are the only canid species to go extinct since prehistoric times.
Canidae soon divided into three subfamilies, each of which diverged during the Eocene: Hesperocyoninae (about 39.74–15 Mya), Borophaginae (about 34–32 Mya), and Caninae (about 34–30 Mya; the only surviving subfamily).
By the latest Miocene (about 7–8 Ma), members of the Subfamily Caninae were finally able to cross the Bering Strait to reach Europe (CrusafontPairó 1950), commencing an explosive radiation and giving rise to the modern canids of the Old World.
Gastric dilatation with volvulus (GDV) and gastric dilatation (GD) without volvulus have been documented in deep-chested canids such as maned, red, and gray wolves. GDV is an acute, life-threatening condition and often is recognized on postmortem examination following unexpected and sudden death.
19 kwi 2017 · Most canids (Family Canidae) are easy to recognize by their characteristic long muzzle, long limbs and bushy tails. They have a conservative body plan retaining traits of early mammals, including a primitive dental formula (I 3/3, C 1/1, P 4/4, M 2/3 in the majority of Canidae) [ 1 ].
Psowate (Canidae) – rodzina lądowych ssaków z podrzędu psokształtnych (Caniformia) w obrębie rzędu drapieżnych (Carnivora) obejmująca między innymi psy, wilki, lisy, kojoty i szakale – łącznie ponad 30 współcześnie żyjących gatunków rozprzestrzenionych na wszystkich kontynentach poza Antarktydą.
20 kwi 2019 · Here, we use a combination of phylogenetic analyses, ancestral character reconstructions and comparative methods on the only extant subfamily, Caninae, to understand how traits expressing ecological features evolved over the last 12.6 Myr.
