Native Americans in North and Mezo America did not have domesticated animals in the sense of food animals, beasts of burden or pets. They did have (for lack of a better term) semi-domesticated dogs. The dogs served as watchdogs after a fashion, barking warning of animal or human intruders. The humans fed the dogs scraps and allowed them to warm at their fires. Canine senses and human weapons together were a more formidable foe to bears, wolves, cougars and other predators than either made seperately. The dogs ran free and there's no indication that particular dogs and humans developed the life long relationships of truly domesticated animals.
In South America, Native Americans domesticated the alpaca and the llama. They provided milk, meat, wool and leather.
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