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The Wolf Dog (1933) is an American Pre-Code Mascot film serial starring Frankie Darro and Rin Tin Tin Jr. Wolf Dog (1958), also known as A Boy and His Dog, is a Northwestern movie, directed and produced by Sam Newfield, and produced by Regal Films; Wolfdogs Magazine self-describes as a progressive "community based publication for wolfdog ...
Canidae (/ ˈ k æ n ɪ d iː /; [3] from Latin, canis, "dog") is a biological family of dog-like carnivorans, colloquially referred to as dogs, and constitutes a clade. A member of this family is also called a canid (/ ˈ k eɪ n ɪ d /). [4] The family includes three subfamilies: the Caninae, and the extinct Borophaginae and Hesperocyoninae. [5]
The wolf-sized C. chihliensis appeared in northern China in the Mid-Pliocene around 4-3 million YBP. This was followed by an explosion of Canis evolution across Eurasia in the Early Pleistocene around 1.8 million YBP in what is commonly referred to as the wolf event.
Canids vary in size, including tails, from the 2 meter (6 ft 7 in) wolf to the 46 cm (18 in) fennec fox. Population sizes range from the Falkland Islands wolf , extinct since 1876, to the domestic dog, which has a worldwide population of over 1 billion. [ 1 ]
Compared to the dog's wolf-like ancestors, selective breeding since domestication has seen the dog's skeleton increase in size for larger types such as mastiffs and miniaturised for smaller types such as terriers; dwarfism has been selectively bred for some types where short legs are preferred, such as dachshunds and corgis. [33]
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Epicyon had a massive head and powerful jaws that were well adapted for bone-crushing, with enlarged fourth premolars like some hyenas, giving its skull a lion-like shape rather than having a skull similar in shape to that of a wolf; the adaptation would have allowed Epicyon to scavenge as well as hunt, giving it access to the nutritious marrow other contemporary carnivores couldn't access.
Selective breeding began as a way to make dogs smaller in size and also to make them more docile. One article explains , "Domestic dogs first emerged as early as 30,000 years ago in Southeast Asia ...