- Thu May 28, 2015 7:31 pm
Thanks for your response--you ask a good question. I don't mean to suggest that the squirrel evidence couldn't be mentioned in the right answer, but let's again consider the big picture components of the passage and try to roughly prephrase the author's main point:
Paragraph One: Introduce the pronghorn, which runs faster than it really needs to.
Paragraph Two: Introduce the idea of relict behavior and the skepticism about it,
Paragraph Three: Provide evidence that the pronghorn's speed is a relict behavior.
Paragraph Four: Provide other animal examples of relict behavior, and one possible example of a lost relict behavior.
If we were to attempt to prephrase the answer to this Main Point question, it would probably be something along these lines: Pronghorns are faster than they need to be, perhaps because of relict behavior; some are skeptical of this theory but evidence supports it as an explanation of pronghorn speed, and relict behavior appears to exist in other animals as well--though there is at least one example of a relict behavior that didn't last indefinitely.
This prephrase is too long to be the right answer verbatim! ...but it contains all of the integral elements of the passage, most of which are also mentioned in correct answer choice (A). With regard to answer choice (D), while the author does reference the fact that one such behavior appears to dissipate after millions of years, this is just part of the big picture.
Additionally, though the author mentions that some ground squirrels have apparently lost their innate fear of rattlesnakes, I"m not sure that one example would suggest that every type of relict behavior will eventually disappear.
I hope that's helpful! Please let me know whether this is clear--thanks!
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