首页
登录
职称英语
From the goose that laid the golden egg to the race between the tortoise and
From the goose that laid the golden egg to the race between the tortoise and
游客
2025-03-28
28
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. 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 spontaneously 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] Aesop’s fables have been popular for such a long time because they ______.
选项
A、tell us the truth of nature
B、tell us interesting stories of animals
C、are teachings of life
D、are scientific literature
答案
C
解析
转载请注明原文地址:http://tihaiku.com/zcyy/4015914.html
相关试题推荐
Fromthegoosethatlaidthegoldeneggtotheracebetweenthetortoiseand
Fromthegoosethatlaidthegoldeneggtotheracebetweenthetortoiseand
ThetradefairisdesignedtofacilitatefurthercooperationbetweenChineseaut
Thegapbetweenthoseatthelowestlevelandthoseatthehighestlevelofinco
Theprincipaldifferencebetweensingingandspeakingisthatinsingingvowels
Between1883and1837,thepublishersofa"pennypress"provedthatalow-p
Between1883and1837,thepublishersofa"pennypress"provedthatalow-p
Between1883and1837,thepublishersofa"pennypress"provedthatalow-p
Between1883and1837,thepublishersofa"pennypress"provedthatalow-p
Between1883and1837,thepublishersofa"pennypress"provedthatalow-p
随机试题
Themajority______thatthenewmaterialwillfinditswayintowideuseinmachi
WhichofthefollowingsentencesisNOTcorrect?A、Idon’tbelieveanythingwhat
Accordingtothepassage,tobeasuccessfulsalesman,one______.[br]Thepass
在校对时,使用《现代汉语词典》校正原稿用字用词错误属于()。A.对校法 B.
下列关于环境质量单因子指数Pi的说法,正确的是( )。A.Pi<1时为超标
隧道防水材料包括注浆材料、高分子合成卷材、排水管和()。A:防水混凝土 B:
关于抽逃出资,下列说法正确的是()。 Ⅰ.股东出资后,将款项存到
凡是不能应用()简化为无分支电路的电路。便是复杂直流电路。 (A)
订立劳动合同所依据的客观情况发生重大变化,致使劳动合同无法履行,应变更相关的
极具发展前途的火灾探测器是()。A:感温火灾探测器B:感光火灾探测器C:气
最新回复
(
0
)