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| | Mixed-breed dog - Wikipedia, the free encyclopedia |
 | | Guessing a mixed-breed's unknown ancestry is difficult for even knowledgeable dog observers, because mixed breeds have much more genetic variation than among purebreds. |
 | | Random-bred dog, mutt, and mongrel are often used for dogs who result from breeding without the supervision or planning of humans, especially after several generations, whereas mixed breed and crossbreed often imply mixes of known breeds, sometimes deliberately mated. |
 | | Mixed breed dogs are, on average, no more intelligent than purebred dogs, and both sets feature both slow learners and dogs with high learning capacity. |
| en.wikipedia.org /wiki/Mixed-breed_dog (52 words) |
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