The relationship between man and dog is old and our four-legged friends were with us in good, bad, work, fighting, joy. That's right now.
When people wanted to conquer another area, they not only took their family members and their treasures with them, but also their pets. However, during the wandering period, some copies could have escaped, escaped, and enjoyed freedom. However, this kind of freedom did not necessarily mean an advantage for the living creatures of the new area. With the invasive species settling, the native fauna and flora saw damage. Not only was the number of flocks weakened, but even the newly settled animals contributed to their final extermination (see Australia's cat care).
With the discovery of America, not only the colonizing people made great destruction among the indigenous people with the injected diseases, with the weapons, but also with their dogs. Has a lethal effect. Indigenous dogs from indigenous populations were replaced by dogs from Europe. However, a good American dog breed is believed to have the genetics of the oldest of all dogs, but the reality is that the dogs came from Siberia to North America. In other words, the fact that we would have a faithful friend of ours by taming the wolves is not appropriate. As well as the fact that dogs would have been placed on American soil by immigration.
However, the fact that the colonization has brought dogs with them, and not only the two-legged, but the four-legged ones, have been successfully reproduced, conquering the new continent.
The disappearance of the indigenous dogs of the American continent is probably the explanation for the people. That is, native dogs could be sensitive to the diseases of European dogs, so they died. Maybe they were still hunting for the dogs. Certainly the ancient American dogs disappeared completely.
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(Source: homeowner.com): flic.kr/p/nDpT57, flic.kr/p/pwoPt2)