Dinosaurs Are Endotherms

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The author in the reading passage claims that dinosaurs are endotherms, while the speaker in the listening holds a dramatically contracting standpoint and states that dinosaurs are not endotherms. The first concern of the reading is that people have found dinosaurs fossils in the polar regions. The lecturer , however, refutes that the polar regions where dinosaurs live are much warmer than today, and warm enough for animals, who are not endotherms, to live. Moreover,if the polar regions becomes cold, the dinosaurs can migrate to warmer places. Secondly, the reading further maintains that the dinosaurs' legs are underneath the body like all modern endotherms, whereas the point in the listing contradictory to it is that the body structure

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