首页
登录
职称英语
From the goose that laid the golden egg to the race between the tortoise
From the goose that laid the golden egg to the race between the tortoise
游客
2024-01-14
38
管理
问题
From the goose that laid the golden egg to the race between the tortoise and the hare, Aesop’s fables are known for teaching moral lessons rather than literally being true. But a new study says at least one such tale might really have happened.
It’s the fable about a thirsty crow (乌鸦). The bird comes across a jar with the water level too low for him to reach. The crow raises the water level by dropping stones into the jar. The moral tells: Little by little does the trick, or in other retellings, necessity is the mother of invention.
Now, scientists report that some relatives of crows called rooks used the same stone-dropping strategy to get at a floating worm. Results of experiments with three birds were published online by the journal Current Biology.
Rooks, like crows, had already been shown to use tools in previous experiments. Christopher Bird of Cambridge University and a colleague exposed the rooks to a 6-inch-tall clear plastic tube containing water, with a worm on its surface. The birds used the stone-dropping trick naturally and appeared to estimate how many stones they would need. They learned quickly that larger stones work better.
In an accompanying commentary, Alex Taylor and Russell Gray of the University of Auckland in New Zealand noted that in an earlier experiment, the same birds had dropped a single stone into a tube to get food released at the bottom. So maybe they were just following that strategy again when they saw the tube in the new experiment, the scientists suggested. But Bird’s paper argued there’s more to it: The rooks dropped multiple stones rather than just one before reaching for the worm, and they reached for it at the top of the tube rather than trying to reach the food at the bottom.
The researchers also said Aesop’s crow might have actually been a rook, since both kinds of birds were called crows in the past. [br] According to Alex Taylor and Russell Gray, it seems that rooks_____________.
选项
A、tend to follow the others’ strategy
B、can remember their former strategy
C、can change strategy in different situations
D、seldom use the same strategy in experiments
答案
B
解析
根据文章第五段前面部分“In an accompanying commentary, Alex Taylor and Russell Gray of the University of Auckland in New Zealand noted that in an earlier experiment, the same birds had dropped a single stone into a tube to get food released at the bottom. So maybe they were just following that strategy again when they saw the tube in the new experiment, the scientist suggested.”可知,Alex Taylor and Russell Gray认为,这些鸟在先前的实验中遇到相同的管子时曾用过投石的方法吃到了虫子,可能看到这个实验中的管子,记起了先前的相似实验经历,用了同样的方法,故选B。
转载请注明原文地址:https://tihaiku.com/zcyy/3361416.html
相关试题推荐
Icanhardly______thedifferencebetweenthesetwowords.A、pointB、speakC、talk
Youfeelhappiestwhenyoucreateahealthybalancebetweengivingandreceiv
Youfeelhappiestwhenyoucreateahealthybalancebetweengivingandreceiv
The______goalofthebookistohelpbridgethegapbetweenresearchandteachin
Theopeningbetweentherockswasverynarrow,buttheboysmanagedto______thro
Ican’ttellthe______differencebetweenthetwinsisters.A、slightB、simpleC、sl
The______betweenthetwoplayingperiodsofafootballgameisonlyafewminute
Suddenly,atallmandrivingagoldencarriage______thegirlandtookheraway,
______thatthetradebetweenthetwocountriesreacheditshighestpoint.A、Duri
Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusually
随机试题
Excessinventory,amassiveproblemformanybusinesses,hasseveralcauses,
Reachingtheplateauphaseisanindicationtoreviseyouraerobicsprogramand
Edgar:Iwishmybosswouldn’ttalksoloud.Itgivesmeaheadache.Oscar:Wel
Whowritesthismemorandum?Thememorandumiswrittenby___________.[br]What
"Blink"TechnologyA)Tiredofallthattime
甘肃信仰藏传佛教的民族有藏族、蒙古族、土族、裕固族。
(2016年真题)下列关于大宗商品的说法,错误的是()。A.大宗商品可以进
7、类别:电子邮件 来件人:常洁绩效薪酬主管 收件人:周与凡人力资源部部
注意事项 1.申论考试与传统的作文考试不同,是分析驾驭材料的能力与表达能力并重
关于税负转嫁的说法,正确的是( )。A.对非生活必需品的课税,税负容易转嫁
最新回复
(
0
)