[TOEFL/Writing] Question1 : About Repenomamus robustus

My Writing

The article said archaeologists found new facts about R. robustus. Before these facts were discovered, some researchers thought R. robustus was an active hunter of dinosaurs. However, some facts suggest it could be a scavenger.

First, the writer claims that it R. robustus was too small to hunt big size dinosaurs, like psittacosaurs which was almost two meters tall when fully grown. On the other hand, the lecturer said R. robustus is ...

The writer said that the legs of R. robustus were more suited for scavenging than hunting because it had short legs and its legs were positioned to the side, not underneath. The lecturer said it could run up to almost 15km/h and this speed is fast enough to catch other dinosaurs.

Lastly, the writer said the fact that the nones of the psittacosaur inside R. robustus stomach do not have teeth marks wich usually appeared when animals are eaten by other animals. Because of this fact, the writer asserted R. robustus would hunt unguarded dinosaur nests and usually swallow an egg with the small psttacosaur still inside the eggshell. At the same time, the lecturer said R. robustus had a powerful jaw and its bak teeth are developed to chew. For this reason, R. robustus could swallow big pieces of other animals.

 

Modify

• Miss some details
• The article -> The writer or The reading
• Dinosaurs are extinct -> write to use past tense
• "fact" always suggest

 

Example

The lecture completely refutes the reading passage. The professor use the following points to indicate that R.robustus could have been actively hunting baby psittacosaur and similar sized baby dinosaurs.

First, although R. robustus was small, it was much bigger than baby psittacosaurs dinosaur, more than twice in size. This means R. robustus was big enough to hunt baby psittacosaurs.

Second, even though R. robustus had short legs and they were positioned somewhat to the side, these features are not sufficient indications that R. robustus could not run as fast enough to be successful predator. The professor pointed out that Tasmanian Devil, a morden-day successful predator whose legs share similar "disadvantages", can run as fast as 50km/h and is an active and very successful hunter todya. So its possible R. robustus could run just as fast and therefore be as successful in hunting.

Last but not the least, lack of teeth marks on the dinosaur bones is not enough evidence to support conclusion that the dinosaur was not actively hunted. Studies of fossil records show that though R. robustus had powerful jaws but also, it did not use its back-teeth for chewing because its back teeth had no wear and tear. So we can also guess that R. robustus could had swallowed the baby dinosaur whole and therefore not leaving any teeth marks.