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Using tools doesn’t make humans, dolphins, and crows smart. Rather, it’s the stress and challenge of living with others—recogniz
Using tools doesn’t make humans, dolphins, and crows smart. Rather, it’s the stress and challenge of living with others—recogniz
admin
2018-04-17
21
问题
Using tools doesn’t make humans, dolphins, and crows smart. Rather, it’s the stress and challenge of living with others—recognizing friend from foe, calculating who to deceive and who to befriend—that led these and other social creatures to evolve their cognitive skills. That’s the gist of the social intelligence hypothesis, an idea that’s been around since 1966. But does having to remember whose lice need picking actually improve other mental abilities, like figuring out how to open a locked box with a hunk of meat inside? A new study of four carnivores—two social and two solitary species—suggests that it does.
"They’ve taken an important issue and tested it in a simple but novel way," says Richard Byrne, an evolutionary psychologist at The University of St. Andrews in the United Kingdom, who was not involved in the study. "The results are clear;
The cognitive benefit from being a social carnivore does transfer" to a mental ability that has nothing to do with being social
, he says.
Other researchers think the results aren’t as clear-cut. " It is important and a valuable stepping stone in our quest to understand how intelligence evolved, but like all studies, it is one piece of a larger puzzle," says Sarah Benson-Amram, a zoologist at the University of Wyoming in Laramie, whose recent comparative study of 39 species of carnivores reached the opposite conclusion.
Scientists devised the social intelligence hypothesis to explain the evolution of the human brain. They’ve found that most social species (from chimpanzees to social wasps) have relatively large brains and are cognitively sophisticated, adept at experiments designed to test their smarts. But some researchers argue that another factor—a challenging environment—may also stimulate cognitive evolution. If so, then more solitary species could also be large-brained and smart thanks to the ecological difficulties they face.
Other researchers concur, but with caveats. " They did find a nice link between sociality and success" on this task, says Evan MacLean, a comparative psychologist at Duke University in Durham, North Carolina. But he wonders what type of cognition the ability to open a puzzle box actually demonstrates. " It may be reflective of trial and error learning, insight, or just of curiosity or interest in novel objects. "
The puzzle box is also not particularly " ecologically relevant," to the carnivores, notes primatolo-gist Frans de Waal at Emory University in Atlanta, who would like to see the animals tested on some type of predator-prey task. Still, it is " a good first step and a fresh approach to the intelligence of carnivores , a group we have neglected for too long. "
By saying that " ’the cognitive benefit from being a social carnivore does transfer’ to a mental ability that has nothing to do with being social", Richard Byrne means______.
选项
A、cognitive benefits have something to do with some mental abilities
B、cognitive benefits have nothing to do with some mental abilities
C、social animals can develop some mental abilities that solitary ones do not
D、social animals can develop some mental abilities that are not innate
答案
D
解析
细节题。由题干定位到文章第二段。“作为社会性食肉动物,其认知益处的确可以转化成一种智力,而这种智力与其群居动物的身份毫无关系。”[D]“社会性动物可以形成一些非与生俱来的智力”,此句即为这段话的主要含义。
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0
考研英语一
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