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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.
1 evolutionary | |
adj.进化的;演化的,演变的;[生]进化论的 | |
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2 beetles | |
n.甲虫( beetle的名词复数 ) | |
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3 larvae | |
n.幼虫 | |
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4 pestering | |
使烦恼,纠缠( pester的现在分词 ) | |
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