One kind of female butterfly mates only once in its life -- and then closes its wings to avoid "harassment" when pursued by persistent and unwanted males, a Japanese researcher said.
日本一位研究人员称,雌性红灰蝶一生只交配一次,在其它雄性红灰蝶不停地追求它时,它会合上翅膀躲避这种不必要的“骚扰”。
Observations of the Small Copper Butterfly, a colourful orange and black butterfly, showed that some females closed their wings when males flew by, but only when they were males of their own species, said Jun-Ya Ide, an associate professor at Kurume Institute of Technology in Fukuoka, western Japan.
红灰蝶全身黄黑相间。日本西部福冈市久留米大学副教授六月亚井发现,当雄性红灰蝶飞近时,一些雌性红灰蝶经常会合拢翅膀。
"When we looked into why, the males were courting the females. They do this very stubbornly, so the females sometimes try to get away -- or prefer to stay unobserved," he added.
他补充说:“我们试图揭开谜团时发现,这些雄蝶在追求雌蝶,它们非常执着,因此雌蝶有时想要逃开,或者宁可躲起来。”
Ide and his colleagues brought a model of a male butterfly near the females to test their reactions and found that young females that had yet to mate kept their wings open, but those that had already mated closed them.
六月亚井和他的同事制作了一只雄蝶模型来靠近雌蝶,试探雌蝶的反应,结果发现,未交配过的雌蝶张大了翅膀,而已经交配过的雌蝶却把翅膀合上了。
Not only can the persistent attentions of unwanted suitors harm the delicate females, fleeing from them -- with the male often in pursuit -- uses up strength and can even shorten their lives, he added.
他补充称,雄蝶对雌蝶不断的追求不仅会伤害到这些纤弱的雌蝶,而且在雄蝶穷追不舍时,雌蝶四处躲避雄蝶的骚扰,会过于疲惫甚至折寿。
"Closing their wings makes them less visible, helping them avoid communication with their own species. We figured they were trying to avoid sexual harassmentby males," Ide said.
他说:“合上翅膀可以让雌蝶不那么显眼,避免与同类红灰蝶的接触。我们认为它们是在躲避雄蝶的性骚扰。”
英语阅读理解的技巧和方法
体坛英语资讯:Sporting Lisbon eyeing Atlanta United midfielder Barco
三岁那年,我遇到了圣诞老人
医学界新进展:绝症红斑狼疮或许将能被治疗
体坛英语资讯:Indonesia beats Thailand 2-0 in SEA Games
国内英语资讯:Chinese FM holds talks with Iranian Foreign Minister
国际英语资讯:Ethiopia, Eritrea eye socioeconomic integration amid rapprochement of ties
国内英语资讯:Xis speech at gathering marking Macaos 20th return anniversary published
The Amazing Voice 美妙的声音
国内英语资讯:Across China: Yiwu: Santas new hometown
国际英语资讯:U.S. Fed policy-making committee could see more consensus on monetary policy in 2020: media
国内英语资讯:Guangzhou Baiyun Airport to handle 90 million passengers in 2025
Plans For the New Semester 新学期计划
美国发布最新电子烟报告,引起严重肺病的物质基本确定
国内英语资讯:Chinese military spokesperson urges U.S. not to implement negative fiscal clauses
看似有爱实际却很危险的恋爱习惯
给孩子零花钱开始变得"移动化"
国际英语资讯:Trump warns Russia, Syria, Iran against violence in Idlib
2020"美国小姐"花落24岁女博士
喜迎2020 英国大本钟全新蓝色钟面亮相
国际英语资讯:Thai authorities target stores selling alcohol to underage during New Year holiday
The Sport I Like 我喜欢的运动
国内英语资讯:South China building new test zone for self-driving cars
国内英语资讯:E China province sees foreign investment surge in manufacturing, strategic sectors
Christmas Activity 圣诞节活动
国际英语资讯:Israels Likud ruling party prepares for leadership primary
国际英语资讯:Feature: People in Mosul yearn for better life in 2020
国际英语资讯:Spotlight: Rust Belt city in U.S. Wisconsin finds way to recovery
国际英语资讯:Russia, Ukraine clinch gas transit extension deal
国内英语资讯:Xi Focus: Xi addresses New Year gathering of CPPCC National Committee
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |