The passage and the lecture both discuss the flying abilities of pterosaurs. The article states that they are too large to be able to fly and provides three reasons of support. However, the professor says that pterosaurs may be capable of flying and refutes each of the reasons presented in the article. First of all, both the author and the lecturer talk about the energy requirement of the flying process. The author claims that pterosaurs could be like the reptiles that live today in that they are cold-blooded animals. The lecturer refutes this point by saying that recent advances in the research have shown that they had dense hair covering which is a characteristic of warm-blooded animals. She states that this is because they need to stay
