绑收腹带的正确方法图:英语在线翻译,急要

来源:百度文库 编辑:高校问答 时间:2024/04/28 06:29:42
We humans aren't the only ones who want to fit in.Researchers have discovered that chimpanzees, too , preferrntially adopt their fellow chimps'way of doing things
Andrew whiten of St.Andrews University in Fife ,Scotland , and his colleagues studied three groups of captive chimpanzees and the ways in which they assumed different techniques for obtaining food . The first group contained a high-ranking female that had been taught to retrieve food from an apparatus by using astick to push a blockage away ,thus freeing the food item . The second group alsocontainde afemale expert ,but one that had instructd to lift the bolckage with the stick in order to releade the treat .The third group was a control group and did not have a local expert. When the experts were reunited with their respective groups ,the other chimps watched their activities at the food apparatus intently and learnd to apply either the poking or lifting technique themselves. Members of the third group,lacking an expert to guide them ,failde to figure to figure out the contraption on their own .
For the most part ,chimps in the first group initially stuck to poking and those in the second group stuck to lfting . But then ,unexpectedly ,one chimp in the second group independently discovered and began using the poking strategy ,thereby introducing to his cohorts ,a number of whom began applying it ,the chimps reverted to their group's normal way of doing things.
"We have shown a non -human species conforming to agoup norm , despite possession of an alternative technique that represents the norm of another group,"the team writes in areport published online yesterday bu the journal Nature."Conformity fits the assumption of an intrinsic motivation to copy others ,guided by social bonds rather than material rewards such as food ."The findings ,they conclude , speak to an ancient origin for our own desire to conform