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本帖最后由 细胞海洋 于 2012-3-3 01:11 编辑 9 o& y5 M8 ?# F3 T0 L7 V" E7 b% G
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) C' [* F0 r0 ?! n/ N0 M4 m/ \COVER An adult male brown anole, Anolis sagrei (length ~150 ) H. I% h6 ]; ^ I/ L! Z2 x
millimeters from snout to tail), perches atop a branch. The diameter of the
0 r' Q- f6 Y ^0 [6 jvegetation used by brown anoles is a strong selective force on limb length.
0 {6 l& \! ?/ C3 y: s3 {& ?( wLizards inhabiting previously unoccupied islands in the Bahamas show genetic and $ a$ k. w c% y1 O) s) r- T
morphological differences due to random and selective processes. See page 1086. 4 b0 X: n2 [" f8 p9 o" C4 m
Photo: Neil Losin, University of California, Los Angeles, www.neillosin.com y9 i) `. F/ R6 m4 y
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发表于 2012-3-2 13:09
