▶ Your Answer : In this given set of materials, there is some discrepancy between the views of the lecturer and the author over the issue of Edmontosaur. With three cogent explanations, the lecturer raises objections to the alleged reasons of migraiton of Edmontosaur. To start with, the lecturer debunks the author's first conjecture since the author's argument is not convincing.. To elaborate in detail, the lecturer claims that summer of Artic region was warmer than today. She adds that the weather was warm enough to grow vegetables which is their diet well. This view is in direct opposition to the author's claim that dinosaurs might have migrated because there was no food in cold and harsh weather. In addition, the lecturer also indicates dissent over the author's idea on cooperating migration. The lecturer sounds convined that the author is making a manifest error about edmontosaur since there are other reasons to stay into a herd such as providing extra protection. However, the author clarifies that fossils in the same spot proves that dinosaurs coordinated their migration. Thirdly, the lecturer goes on to expound that the author's final point on capacity of enduring long distance is flawed. The lecturer mentions that young edmontosaurs were not strong enough to survive their own from extended migration. However, this counters the author's theory that dinosaurs had physical advantages to endure a long journey. Therefore, with these three convincing explanations the lecturer posits, the author's assumptions are all rendered invalid. |