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Naturalist: The recent claims that the Tasmanian tiger is not extinct

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Naturalist: The recent claims that the Tasmanian tiger is not extinct [#permalink]

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New post 18 Sep 2017, 20:11
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Naturalist: The recent claims that the Tasmanian tiger is not extinct are false. The Tasmanian tiger’s natural habitat was taken over by sheep farming decades ago, resulting in the animal’s systematic elimination from the area. Since then naturalists working in the region have discovered no hard evidence of its survival, such as carcasses or tracks. In spite of alleged sightings of the animal, the Tasmanian tiger no longer exists.

Which one of the following is an assumption on which the naturalist’s argument depends?

(A) Sheep farming drove the last Tasmanian tigers to starvation by chasing them from their natural habitat.

(B) Some scavengers in Tasmania are capable of destroying tiger carcasses without a trace.

(C) Every naturalist working in the Tasmanian tiger’s natural habitat has looked systematically for evidence of the tiger’s survival.

(D) The Tasmanian tiger did not move and adapt to a different region in response to the loss of habitat.

(E) Those who have reported sightings of the Tasmanian tiger are not experienced naturalists.

Source: LSAT
[Reveal] Spoiler: OA

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Re: Naturalist: The recent claims that the Tasmanian tiger is not extinct [#permalink]

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New post 18 Sep 2017, 20:32
D.
A : the stem only mentions driving away the tigers
B: ot actually goes against the argument.
C: talks about the process
D :correct
E: no mention of different types of naturalists.

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Naturalist: The recent claims that the Tasmanian tiger is not extinct [#permalink]

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New post 18 Sep 2017, 20:38
broall wrote:
Naturalist: The recent claims that the Tasmanian tiger is not extinct are false. The Tasmanian tiger’s natural habitat was taken over by sheep farming decades ago, resulting in the animal’s systematic elimination from the area. Since then naturalists working in the region have discovered no hard evidence of its survival, such as carcasses or tracks. In spite of alleged sightings of the animal, the Tasmanian tiger no longer exists.
Which one of the following is an assumption on which the naturalist’s argument depends?
(A) Sheep farming drove the last Tasmanian tigers to starvation by chasing them from their natural habitat.
(B) Some scavengers in Tasmania are capable of destroying tiger carcasses without a trace.
(C) Every naturalist working in the Tasmanian tiger’s natural habitat has looked systematically for evidence of the tiger’s survival.
(D) The Tasmanian tiger did not move and adapt to a different region in response to the loss of habitat.
(E) Those who have reported sightings of the Tasmanian tiger are not experienced naturalists.

Source: LSAT


The argument talks of the views of a Naturalist who feels that the Tasmanian tigers have become extinct.

The Naturalist further states that the reason for this extinction is that ever since the natural habitat was taken over by sheep farming decades ago and this resulted in the animal’s systematic elimination from the area.

For this argument to hold good, The Tasmanian tiger did not move and adapt to a different region in response to the loss of habitat(Option D) is the assumption.

If this point was not true and the tigers have shifted to another location, then the conclusion will not hold good. However, if this point was actually true, it would clear any confusion and provide evidence for the Naturalist's view.
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Re: Naturalist: The recent claims that the Tasmanian tiger is not extinct [#permalink]

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New post 19 Sep 2017, 14:19
One of the few questions, where my pre-thinking and answer option exactly matched! :)

The conclusion is that the claims that the Tasmanian tiger is not extinct is false.

The reason given is that their natural habitat was taken over by sheep farming ( it immediately clicked that the author is assuming that the tiger could not have survived/adapted in some other environment)

broall wrote:
Naturalist: The recent claims that the Tasmanian tiger is not extinct are false. The Tasmanian tiger’s natural habitat was taken over by sheep farming decades ago, resulting in the animal’s systematic elimination from the area. Since then naturalists working in the region have discovered no hard evidence of its survival, such as carcasses or tracks. In spite of alleged sightings of the animal, the Tasmanian tiger no longer exists.

Which one of the following is an assumption on which the naturalist’s argument depends?

(A) Sheep farming drove the last Tasmanian tigers to starvation by chasing them from their natural habitat.[This is really an extreme assumption and even if this is not true,it won't harm the argument in any way. Hence eliminated]

(B) Some scavengers in Tasmania are capable of destroying tiger carcasses without a trace.[Even if they do, that still does not mean that tigers are extinct, since there could be some tracks or other proofs available.]

(C) Every naturalist working in the Tasmanian tiger’s natural habitat has looked systematically for evidence of the tiger’s survival.[Does not mean that they have been successful in concluding that tigers are extinct! This does not help the argument in anyway.]

(D) The Tasmanian tiger did not move and adapt to a different region in response to the loss of habitat.[Matches with pre-thinking, if this is true, then definitely the tigers are extinct and it is an assumption for the argument]

(E) Those who have reported sightings of the Tasmanian tiger are not experienced naturalists.Irrelevant- Out of Scope

Source: LSAT

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Re: Naturalist: The recent claims that the Tasmanian tiger is not extinct   [#permalink] 19 Sep 2017, 14:19
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Naturalist: The recent claims that the Tasmanian tiger is not extinct

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