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科学美国人60秒 SSS 2013-09-04

时间:2013-11-25 05:16来源:互联网 提供网友:gmeng   字体: [ ]
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    (单词翻译:双击或拖选)

 A baby's cries for food might drive tired parent aggravation,but some species take more drastic measures like the burying beetle,the [xxxxx] which punish it's pesky children by eating them,researches  want to get to the bottom of a age-old  question in evolutionary1 biology,the origin of begging, Natural selection favors of greedy well-fed child,but it also favors parents xxxx food evenly to the young and save some for themselves.So how do you result that parent child conflict,burying beetles2 do so by putting the ultimate price on pleading:death.Begging larvae3 were 13 times more likely than layback larvae to be eating by mom which may discourage from asking for more than their fair sure in the grub. That finding appears in the journal behavior ecology,humans have different standers than beetles do of course,For us pestering4 your parents may be a good thing.One study suggest crying  to sign a good health which may lower baby's chance that being neglected or abused, Than again, after the first few years,you probably better off not being a cry baby.


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1 evolutionary Ctqz7m     
adj.进化的;演化的,演变的;[生]进化论的
参考例句:
  • Life has its own evolutionary process.生命有其自身的进化过程。
  • These are fascinating questions to be resolved by the evolutionary studies of plants.这些十分吸引人的问题将在研究植物进化过程中得以解决。
2 beetles e572d93f9d42d4fe5aa8171c39c86a16     
n.甲虫( beetle的名词复数 )
参考例句:
  • Beetles bury pellets of dung and lay their eggs within them. 甲壳虫把粪粒埋起来,然后在里面产卵。 来自《简明英汉词典》
  • This kind of beetles have hard shell. 这类甲虫有坚硬的外壳。 来自《现代汉英综合大词典》
3 larvae w2CxP     
n.幼虫
参考例句:
  • Larvae are parasitic on sheep.幼虫寄生在绵羊的身上。
  • The larvae prey upon small aphids.这种幼虫以小蚜虫为食。
4 pestering cbb7a3da2b778ce39088930a91d2c85b     
使烦恼,纠缠( pester的现在分词 )
参考例句:
  • He's always pestering me to help him with his homework. 他总是泡蘑菇要我帮他做作业。
  • I'm telling you once and for all, if you don't stop pestering me you'll be sorry. 我这是最后一次警告你。如果你不停止纠缠我,你将来会后悔的。
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TAG标签:   美国科学60秒  英语听力
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