Dogs (and wolves and foxes) are descended from a small, weasel-like mammal called Miacis which was a tree-dwelling creature and existed about 40 million years ago.
Dogs, as we know them today, first appeared in Eurasia about 13,000 years ago, and were probably a direct descendant of a small, grey wolf (not from the type of jackal or jackal/wolf as previously thought). The dingo is not native to Australia but was introduced thousands of years ago by the first immigrants. Dogs were first domesticated by cavemen in the Paleolithic age and gradually developed (or were bred) into the breeds known today.







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