Guns, Germs, and steal part 3

And the number of species are...14 and they are goats, sheep, pigs, cows, horses, donkeys, and camels, water buffalo, llamas, rain deer,yaks, mython and bali cows .Zebras have never been ridden into battle because they are too skittish. None are from New Guinea or Australia or sub-saharen Africa, North America and one in South America which is llama. The other 13 were from Asia and Europe. Cows sheeps goats horses middle east were big 4 important ones. Fertile crescent were geographically blessed they had all domesticated animals great farm land everything. They soon were the first to ever make a good home which they won't move from. Then more people were part of civilization and they got more people so some became specialized workers. As the group grew so did the technological advantages. They got a big advantage by being able to have domesticate animals and plants. New Guineans never had many advantages and never got great technology. Never advanced because they spent too much time trying to feed themselves. other places had surpluses so they were able to to more things then hunt. The middle east area was soon over used and couldn't produce more plants like before. So they moved away. Then they move East or West and if the same latitude means same day light same climate mainly the same. So they had geography on their side. Once they moved out other places those other regions picked up their way of life by domesticating animals and those animals got moved from land to land and all of the animal population got bigger and more domesticated. So New Guineans also have cities and such but some, live in spots were it almost like the stone ages. He came to a conclusion of it is by luck of Geography and if his people had the luck his people had Yolli would be the one's who "created the helicopter"