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本帖最后由 细胞海洋 于 2012-3-3 01:11 编辑 - V( V3 j# g9 j5 `9 _6 N5 ]% I
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COVER An adult male brown anole, Anolis sagrei (length ~150 + U# Q, ], P/ n& ?0 S
millimeters from snout to tail), perches atop a branch. The diameter of the 1 _. y6 V% s; N
vegetation used by brown anoles is a strong selective force on limb length. & m+ h: J) }0 S4 }
Lizards inhabiting previously unoccupied islands in the Bahamas show genetic and , S7 N- ~4 Y6 {' n5 B
morphological differences due to random and selective processes. See page 1086. # W# [! u g I
Photo: Neil Losin, University of California, Los Angeles, www.neillosin.com
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发表于 2012-3-2 13:09
