Pterosaurs probably could jump and fly

TPO 47 The lecturer and the author are both on the issue of whether ancient reptiles named Pterosaurs which lived with dinosaurs, could have the ability to fly or not. However, they maintain a different view on their reasons and conclusions. In this vein, the lecturer presents a number of counterarguments to cast doubt on what the author mentions about. Firstly, the lecturer asserts that found fossils of Pterosaurs indicate that they have had a dense hair-like covering or something like fur on their bodies, which is the main feature of warm-blooded animals. This trait on the animals' skin explains why they had a high metabolism and were warm-blooded animals. In fact, fur on their bodies implies that they needed to regulate the high temperature in their bodies, so they could fly because of the energy they produced. On the other hand, the author of the passage argues that pterosaurs, like modern reptiles, were cold-blooded and could not fly. Secondly, the lecturer states that unlike what the passage claims, the anatomic studies on their bodies revealed that they have had lightweight compared to their size. Indeed, because their bones were hollow instead of solid, they probably could fly and be airborne with no difficulties. In contrast, the author believes that Pterosaurs could not have the power to use their wings and fly because they were so heavy, and it was impossible for them to do that. Thirdly, the lecturer goes on to say that taking off might be a problem for Pterosaurs, but they could overcome it. She says that they used their four limbs instead of two legs to fly, and they could run very fast and jump to be ready to fly. This point is also made in the passage, which argues that kinds of reptiles could not fly because of the weak muscles in their back legs.