《自然》[Nature]10年8月26日出版pdf全文

exin11

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Darwin recognized eusocial insect colonies — with sterile workers and fertile queens — as a challenge to evolutionary theory: it is tricky to explain why some individuals sacrifice their own reproductive potential in order to raise the offspring of others. Kin selection theory, in which individual fitness derives from increasing the survival of a relatives’ offspring, is often suggested as the explanation. In an Analysis feature, Martin Nowak, Corina Tarnita and Edward O. Wilson point out that this approach is not generally applicable. Instead, they say, standard natural selection combined with precise models of population structure provides a simpler answer. On the cover, Formica obscuripes nestmate workers engaging in trophallaxis, or the social sharing of liquid food. Picture credit: Alex Wild.. S! m  f$ K6 \. T  y
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immail

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chinagalaxy

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changfeng

不看白不看，看也不白看  

cjms

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狂奔的蜗牛

不知道说些什么  

甘泉

天啊. 很好的资源

xm19

胚胎干细胞

haha3245

文笔流畅，修辞得体，深得魏晋诸朝遗风，更将唐风宋骨发扬得入木三分，能在有生之年看见楼主的这个帖子。实在是我三生之幸啊。  

小敏

努力,努力,再努力!!!!!!!!!!!