The article and lecture offer two contrasting views on the pterosaurs' powered flight capability. The author asserts that they didn't have such capability and they were able only to glide and cites three reasons to support. Contrary to the passage, the professor demonstrates that the presented explanations are unconvincing and therefore, they were capable of powered flight.
First of all, the passage contends that modern reptiles are cool-blooded animals and hence, pterosaurs, as a member of reptiles family, were probably cool-blooded too. Since powered flight requires a significant amount of energy, cool-blooded animals are not capable of powered flight due to its required energy. The professor, however, opposes this point by explaining
First of all, the passage contends that modern reptiles are cool-blooded animals and hence, pterosaurs, as a member of reptiles family, were probably cool-blooded too. Since powered flight requires a significant amount of energy, cool-blooded animals are not capable of powered flight due to its required energy. The professor, however, opposes this point by explaining