Skywalker18
Cowonga lion cubs in the wild often engage in aggressive and even violent play with their siblings. This activity is apparently instigated by the parent lions. Cowonga lion cubs born in captivity,however,rarely engage in aggressive play. Zoologists have concluded that this form of play teaches the young lions the aggressive skills necessary for successful hunting in the wild and that such play is not instigated in captivity because the development of hunting skills is unnecessary there.
Boil it down - Aggressive play teaches the young ones the aggressive skills necessary for successful hunting in the wild and such play is not instigated in captivity because the development of hunting skills is unnecessary there.
The zoologists' conclusion would be
most strengthened by demonstrating that
(A) Cowonga lions raised in captivity are unable to hunt successfully in the wild. - We are told that aggressive play teaches aggressive skills NECESSARY for successful hunting; so aggressive skill is the necessary condition
(B) the skills developed from aggressive play are similar to those used for hunting in the wild. - Even this looks okay to me
(C) the young of other types of predatory animals also engage in aggressive play. - Irrelevant
(D) parent lions that were raised in captivity do not instigate this play in their young. - Irrelevant
(E) none of the Cowonga lions raised in the wild is incapable of hunting successfully. - incorrect - just because a skill is taught, it DOES not guarantee that everyone will be successful
AjiteshArun ,
GMATNinja ,
MagooshExpert ,
GMATGuruNY ,
VeritasKarishma ,
DmitryFarber ,
ChiranjeevSingh ,
RonPurewal ,
VeritasPrepBrian ,
MartyMurray - To me both A and B looked correct. Please provide your advice.
Yes, there is a question mark here on (B) but I would pick (A) without looking twice at (B). Here is why:
Conclusion says: Play teaches skills necessary for hunting.
(B) says: Play teaches skills "similar" to those used for hunting
First and foremost, I am unable to make sense of the word "similar" here. It seems to contradict what the conclusion says "those skills are needed" vs "those skills are similar to skills that are used". Also, the conclusion brings in the necessary angle. Those skills are necessary. (B) doesn't cater to that.
Premises:
Cubs born in wild engage in aggressive play. Parents instigate aggressive play.
Cubs born in activity do not engage in aggressive play (so apparently parents don't instigate it)
Conclusion: Aggressive play teaches skills necessary for hunting in wild (and hence not needed in captivity)
(A) Cowonga lions raised in captivity are unable to hunt successfully in the wild.
This shows that the lack of skills taught by aggressive play actually could be the reason for not being able to hunt. So it goes on to strengthen that those skills are necessary for hunting.
(B) the skills developed from aggressive play are similar to those used for hunting in the wild.
Eliminated. Explained above.
(C) the young of other types of predatory animals also engage in aggressive play.
Irrelevant. We don't know anything about wild vs captivity.
(D) parent lions that were raised in captivity do not instigate this play in their young.
We are trying to figure out the reason they do not instigate this play. Doesn't show that aggressive play is necessary for hunting later.
(E) none of the Cowonga lions raised in the wild is incapable of hunting successfully.
We don't need all lions raised in the wild to be successful. Aggressive play is necessary as per our argument. We don't need it to be sufficient. Even if all cubs in wild are able to hunt, we don't know whether cubs raised in captivity are able to hunt. It could very well be a natural trait and not an acquired skill. Hence "aggressive play leading to successful hunting" link is not established.
Answer (A)