![]() ![]() Domesticated animals also led to more productivity in growing food which caused communities (towns and cities) to gather around the food source. Domesticated animals led to a variety of diseases spreading and, when the diseases were not fatal, antibodies built up in the survivors which led to resistance to other diseases which were passed on to other generations. ![]() ![]() Horses were abundantly used for transportation and as such, their feces was abundant in the streets of towns and cities. Many more animals were domesticated in Europe and Asia than in Africa and America. In the cities and towns, people interacted closely with each other. Secondly, over the centuries before the discovery of the Americas, Europe consisted of towns and cities (as well as rural environments) with a variety of domesticated animals. It was antibodies that protected them, not the DNA of the Europeans. This meant they had a genetic disposition to resisting, or recovering from, diseases as well as the actual antibodies that provided immunization. ![]() First, any European who was up and about during the discovery and colonization of the New World had ancestors who’d already survived the Black Plague. For example, in order to get to the answer of the above question he asks, “Why did Native Americans die from European contagions yet Europeans didn’t die from Native American ailments.” Diamond then goes to great length to develop a multi-faceted answer. ![]()
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