《科学》[Science]12年8月17日出版pdf全文

nero1981

COVER Male rhinoceros beetles (Trypoxylus dichotomus) wield a huge forked horn on their heads. Sexual selection may favor the evolution of exaggerated trait sizes because the developmental mechanism responsible for increased growth also results in signal reliability. See page 860. Photo: Will Freihofer and Douglas Emlen- ]0 [0 `! H3 ~* N9 C) P% u2 Z, t

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ljs

好东西啊。。。

开明陆吾

yuheng

xiexie!!

leozarah

thanks
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andyz0922

不错啊
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tpwang

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exin11

zhigudengpan

学习

SSRSQ

下来得瑟一下