The proof that there were no domesticable animals in the new world is that...no animals besides the llama [0] were domesticated. People lived here for tens of t

The proof that there were no domesticable animals in the new world is that...no animals besides the llama [0] were domesticated. People lived here for tens of thousands of years. If something could have been domesticated, it would have, because that's what humans do. And yes, the black plague is zoonotic, as I said. And yes, cities do contribute, because packing a lot of people together give plagues fuel. Plagues are almost always zoonotic, because any disease that kills all its hosts also dies. Plagues usually have a reservoir in animals, mutates to jump to humans and kills them by accident, really. [0] And guinea pigs, I guess, but you can't build an empire on overgrown squeaky toys.