Essay topics: Tpo-extra writing 3
Both the reading and listening parts offer two opposite views about the anting action. While the passage lists three possible advantages of anting; the professor, on the other hand, asserts that there are no clear clues about these benefits and these are unconvincing.
First of all, the article considered that the simultaneous occurrence of anting and feather loss of birds are the correlated, and considered anting as a relief for skin irritation caused by feather loss. On the contrary, the lecturer disapproves this link and asserts that there is a feasibility that anting occurs in summer since ants are abundant and easy to find at this season. Furthermore, the loss of feather also happens for the sake of another reason which is irrelevant to the anting. So, as they happen in the identical season can be a coincidence. Therefore, there is no evidence the anting alleviates the skin irritation.
Secondly, meanwhile, the text said that the formic acid protects birds from external parasites, the instructor, in contrast, rejects this benefit too. As he explains, if it was valid, the anting birds should not be attacked by parasites; otherwise, according to the research conducted the effect of anting, both the anting and not anting birds are attacked by the same number of parasites. Thus, the anting and formic acid do not defense the birds from parasites.
Finally, the passage mentioned that the formic acid causes the ants to taste good and birds eat them later; however, the professor casts doubt on the accuracy of this assertation too. Based on his description, the rubbing a of formic acid does not warranty that birds eat ants later. For instance, while birds also rub the soap or cigarette to their feather, they do not eat them later. Consequently, engaging in the anting does not prove that birds eat ant later.
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