Chapter 9 : All Domestic Animals Are Alike Essay

1087 Words Nov 26th, 2015 null Page
Chapter 9: All domestic animals are alike and in order for people to domesticate animals they have to be certain they are able to do it. It involves wild animals being transformed into something more useful form humans, such as a cow for food or fertilization and plows. Many species by this time have dramatically changed in size rather it makes them bigger or just their brains smaller but having more developed organs. Keeping them as a pet is also an example of having them domesticated because they are tamed instead of wild. Dates of domestication are evidence found between 8,000-2500 B.C. and DNA and genetics is also evident.
Chapter 10: Diamond proposes Eurasia not only has an advantage in plants and animals, but also in geographic size and ogranization which gave them another advantage over other continents. If you look at the axis it lies East to West horizontally in Eurasia whereas it runs vertically North to South in America and Africa. As important as the geographic difference is spread of food production across the continents the axis provides influence of spreading of crops, animals and other technologies. Through examples it is said that food production is spread more rapidly through South West Asia than in America for that reason.
Chapter 11: Major infectious diseases of recent history, incuding small pox, malaria, the plague, etc., have all evolved from diseases of animals. Dieases have been the biggest murderer of the people and important history influencing…

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