Summarize the points made in the lecture, being sure to explain how they cast doubt on specific points made in the reading passage.

In the given set of materials, the reading and the lecture are both about how dinosaurs survived in deposits Alaska's North Slope in wintertime. While the author provides three possible theories to support the idea that the elephant-sized edmonosaur survived by migrating south to warmer regions, the lecturer disputes the claims made in the text. In particular, her position is that this hypothesis is not convincing. First of all, according to the reading, Edmonosaurs' diet contained plants. Since there would have been no plants in the winter, it was more likely for dinosaurs to leave. Nevertheless, this specific argument is challenged by the lecturer. She declares that Alaska's North Slope was much warmer than it is now. Additionally, in the summer, there was sunshine 24 hours a day and there were vegetables. In the winter, however, dead plants were full of nutrients that could be eaten. Secondly, edmonosaurs lived in herds, and many animals that migrate live in herds as well. The speaker, on the other hand, asserts that living in herds does not mean that they migrated. Furthermore, she points out that there are some animals that live together just for extra protection. Finally, the writer posits that edmonosaurs were physically capable of migrating long distances. In contrast, the professor's stance is that dinosaurs that were not adults yet, could not have moved large territories. Following this argument, she votes that young edmonosaurs would not be able to survive by themselves. As you can see, the listening part casts doubts on the points made in the text by bringing up its compelling examples and explanations to elaborate on its viewpoint.
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