Good afternoon, Kathan899. The ideas of Darwin were influenced by a few people such as Jean Baptise Lamark, Charles Lyell, Thomas Malthus, and Alfred Russel Wallace. Lamark believed that traits from an organism could not be generational (passed down by generations). Charles Lyell believed that the Earth was older than anyone thought. Malthus believed that with more people in the world than resources, there would be famine and disease. Have you ever heard of A.R. (Alfred Russel) Wallace? No because Darwin did not share his credit for it. A.R. Wallace sent his paper to Darwin and they both got credit for it, for a while. After that, Darwin published the book on his own, which is why he got credit for it and left Wallace's name out of it. These scientists influenced Darwin's on Evolution and Natural Selection because he said that organisms had evolved physically and behaviorally. He said that organisms adapt to their surroundings. Whatever your belief is on these ideas, all of these scientists influenced Darwin to his opinions. I hope I helped!! Have a great day.
