The reading passage talks about some characteristics that endotherms have, and gives some evidences to prove that dinosaurs were endotherms, whereas the lecturer challenges this view.
The reading pasage claims that polar dinosaurs prove they were endotherms because only the endotherms can endure this cold environment; but the speaker refutes this view. She says that the polar region was not as cold as they are today. Therefore, the passage's reasoning is not necessarily true.
The lecturer points out that legs position does not always suggest that the animals are endotherms. She explains that this positioning of legs in dinosaurs was to keep weight rather than being endotherms. The sepaker also says that the larger size of body was essential
The reading pasage claims that polar dinosaurs prove they were endotherms because only the endotherms can endure this cold environment; but the speaker refutes this view. She says that the polar region was not as cold as they are today. Therefore, the passage's reasoning is not necessarily true.
The lecturer points out that legs position does not always suggest that the animals are endotherms. She explains that this positioning of legs in dinosaurs was to keep weight rather than being endotherms. The sepaker also says that the larger size of body was essential