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# A popular beach has long had a dolphin feeding

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Joined: 19 Mar 2012
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27 Nov 2014, 20:33
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Difficulty:

5% (low)

Question Stats:

90% (01:41) correct 10% (02:12) wrong based on 258 sessions

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NEW Verbal Project - Reposting hardest verbal questions. Kudos for answers and explanation. OA in 48 hours

A popular beach has long had a dolphin feeding program in which fish are given to dolphins several times a day; many dolphins get as much as half of their food each day there. Although dolphins that first benefit from the program as adults are healthy and long-lived, their offspring have a lower life expectancy than offspring of dolphins that feed exclusively in the wild. Which of the following, if true, most helps to explain the lower life expectancy of offspring of dolphins feeding at the beach compared to other young dolphins?

A. Sharks that prey on dolphins are less common in the open seas off the beach than in many other areas of the open seas where dolphins congregate.

B. Many of the adult dolphins that feed at the beach are females that nurse their offspring there.

C. The fish given to the dolphins at the beach are the same types of fish that dolphins typically catch in the wild.

D. Many dolphins that feed at the beach with their offspring come to the beach only a few times a month.

E. Adult dolphins that feed at the beach spend much less time teaching their offspring how to catch fish in the wild than do other adult dolphins.

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17 Dec 2014, 01:36
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1
souvik101990 wrote:
NEW Verbal Project - Reposting hardest verbal questions. Kudos for answers and explanation. OA in 48 hours

A popular beach has long had a dolphin feeding program in which fish are given to dolphins several times a day; many dolphins get as much as half of their food each day there. Although dolphins that first benefit from the program as adults are healthy and long-lived, their offspring have a lower life expectancy than offspring of dolphins that feed exclusively in the wild. Which of the following, if true, most helps to explain the lower life expectancy of offspring of dolphins feeding at the beach compared to other young dolphins?

A. Sharks that prey on dolphins are less common in the open seas off the beach than in many other areas of the open seas where dolphins congregate.

B. Many of the adult dolphins that feed at the beach are females that nurse their offspring there.

C. The fish given to the dolphins at the beach are the same types of fish that dolphins typically catch in the wild.

D. Many dolphins that feed at the beach with their offspring come to the beach only a few times a month.

E. Adult dolphins that feed at the beach spend much less time teaching their offspring how to catch fish in the wild than do other adult dolphins.

Fish are given to dolphins several times a day; many dolphins get as much as half of their food each day there.
Dolphins that first benefit from the program as adults are healthy and long-lived, but their offspring have a lower life expectancy than offspring of dolphins that feed exclusively in the wild.

This is a kind of 'explain the paradox' question. You expect the offspring of all dophins to have similar life expectancy. You might even think that dolphins who feed at the beach and their offspring might, in fact, have better life expectancy than others since half of their daily need is supplied by the beach. But actually offspring of dolphins that feed at the beach have lower life expectancy!

What will explain this?

A. Sharks that prey on dolphins are less common in the open seas off the beach than in many other areas of the open seas where dolphins congregate.

If the number of predators is lower near the beach, it should increase the life expectancy of the dolphin offsprings, not decrease it. Not correct.

B. Many of the adult dolphins that feed at the beach are females that nurse their offspring there.

This should increase the life expectancy of the dolphin offsprings since they get half their food from the beach program. Not correct.

C. The fish given to the dolphins at the beach are the same types of fish that dolphins typically catch in the wild.

This also implies that the life expectancy of the dolphin offsprings should not be any lower. Not correct.

D. Many dolphins that feed at the beach with their offspring come to the beach only a few times a month.

This doesn't explain why the life expectancy of the offspring of these dolphins should be lower. Perhaps, if they come to the beach only a few times a month, the beach has no importance for them. But then, why should their offspring have lower life expectancy? The others make do with the fish from the wild - they can do so too.

E. Adult dolphins that feed at the beach spend much less time teaching their offspring how to catch fish in the wild than do other adult dolphins.

This explains the paradox perfectly. Adult dolphins that are busy at the beach don't teach fishing to their offspring. This means that the offspring don't learn how to make up the other half of their daily diet. The fish at the beach provide only half of their diet. They don't learn how to catch fish in the wild and make up the day's quota. On the other hand, the dolphins sticking to the wild spend time teaching fishing to their offspring and hence the life expectancy of their offspring is higher.

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28 Nov 2014, 03:45
Must be E

E. Adult dolphins that feed at the beach spend much less time teaching their offspring how to catch fish in the wild than do other adult dolphins.

If baby dolphins do not learn how to catch the fish in wild then they may die with starvation.
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16 Dec 2014, 15:28
souvik101990 wrote:
NEW Verbal Project - Reposting hardest verbal questions. Kudos for answers and explanation. OA in 48 hours

A popular beach has long had a dolphin feeding program in which fish are given to dolphins several times a day; many dolphins get as much as half of their food each day there. Although dolphins that first benefit from the program as adults are healthy and long-lived, their offspring have a lower life expectancy than offspring of dolphins that feed exclusively in the wild. Which of the following, if true, most helps to explain the lower life expectancy of offspring of dolphins feeding at the beach compared to other young dolphins?

A. Sharks that prey on dolphins are less common in the open seas off the beach than in many other areas of the open seas where dolphins congregate.

B. Many of the adult dolphins that feed at the beach are females that nurse their offspring there.

C. The fish given to the dolphins at the beach are the same types of fish that dolphins typically catch in the wild.

D. Many dolphins that feed at the beach with their offspring come to the beach only a few times a month.

E. Adult dolphins that feed at the beach spend much less time teaching their offspring how to catch fish in the wild than do other adult dolphins.

souvik101990 Can you please post OA and OE for this question??

Is E the right answer for this question Since if Adult dolphins don't get much time to teach there young ones they will not learn to catch other half of there food and will eventually die.

Thanks
AK
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16 Jan 2015, 02:21
Hello Karishma,

Just for the sake of clarity and to ensure that we are rejecting option 'A' for right reasons. In option A you mentioned "predators is lower near the beach" but in actual answer choice it says " open seas off the beach ". I think " open seas off the beach " is an area far away from beach and not near? Please comment.

Thanks
Manoj Parashar
Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 8659
Location: Pune, India

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16 Jan 2015, 03:01
1
manojISB123 wrote:
Hello Karishma,

Just for the sake of clarity and to ensure that we are rejecting option 'A' for right reasons. In option A you mentioned "predators is lower near the beach" but in actual answer choice it says " open seas off the beach ". I think " open seas off the beach " is an area far away from beach and not near? Please comment.

Thanks
Manoj Parashar

"open seas off the beach" means they are talking of waters close to the beach.
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[b]Karishma
Veritas Prep GMAT Instructor

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16 Jan 2015, 03:14
VeritasPrepKarishma wrote:
manojISB123 wrote:
Hello Karishma,

Just for the sake of clarity and to ensure that we are rejecting option 'A' for right reasons. In option A you mentioned "predators is lower near the beach" but in actual answer choice it says " open seas off the beach ". I think " open seas off the beach " is an area far away from beach and not near? Please comment.

Thanks
Manoj Parashar

"open seas off the beach" means they are talking of waters close to the beach.

Thanks for reply. But as far i understand the contextual/literal meaning of Off is away/at distance (Just checked/confirmed on Google.Can not post link as I don't have 5 post yet). I understand it is quite small thing but just trying to understand how "OFF" in this context could mean close?
You may like to use any examples to explain.

Thanks
Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 8659
Location: Pune, India

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16 Jan 2015, 03:49
1
manojISB123 wrote:
VeritasPrepKarishma wrote:
manojISB123 wrote:
Hello Karishma,

Just for the sake of clarity and to ensure that we are rejecting option 'A' for right reasons. In option A you mentioned "predators is lower near the beach" but in actual answer choice it says " open seas off the beach ". I think " open seas off the beach " is an area far away from beach and not near? Please comment.

Thanks
Manoj Parashar

"open seas off the beach" means they are talking of waters close to the beach.

Thanks for reply. But as far i understand the contextual/literal meaning of Off is away/at distance (Just checked/confirmed on Google.Can not post link as I don't have 5 post yet). I understand it is quite small thing but just trying to understand how "OFF" in this context could mean close?
You may like to use any examples to explain.

Thanks

Important is the meaning of the phrase, not of individual words.
Quite often the phrase is used in this way "...the rock formation just off the beach...". It means next to the beach. 'The waters off the beach' means the waters next to the beach. That is how you differentiate 'waters close to the beach' from 'waters far away from the beach'.

Probably, insertion of the word 'just' would have made the intent clearer but we cannot change the options.
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[b]Karishma
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16 Jan 2015, 06:53
manojISB123 wrote:
VeritasPrepKarishma wrote:
manojISB123 wrote:
Hello Karishma,

Just for the sake of clarity and to ensure that we are rejecting option 'A' for right reasons. In option A you mentioned "predators is lower near the beach" but in actual answer choice it says " open seas off the beach ". I think " open seas off the beach " is an area far away from beach and not near? Please comment.

Thanks
Manoj Parashar

"open seas off the beach" means they are talking of waters close to the beach.

Thanks for reply. But as far i understand the contextual/literal meaning of Off is away/at distance (Just checked/confirmed on Google.Can not post link as I don't have 5 post yet). I understand it is quite small thing but just trying to understand how "OFF" in this context could mean close?
You may like to use any examples to explain.

Thanks

Intern
Joined: 13 Feb 2015
Posts: 12

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17 Aug 2018, 05:22
There are multiple usages of "off" as a preposition and as an adverb. All usages are explained with examples under the following link:

https://www.collinsdictionary.com/dicti ... lish/off_1

All your doubts regarding "off" will be cleared. Thank you.
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Vipul Chhabra

Re: A popular beach has long had a dolphin feeding &nbs [#permalink] 17 Aug 2018, 05:22
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