|
- 积分
- 17983
- 威望
- 17983
- 包包
- 26159
|
本帖最后由 细胞海洋 于 2013-1-5 08:47 编辑
3 d; A6 D( W. k! i: z! Y! a+ \' V. y2 {( f
COVER Head of a juvenile Nile crocodile (Crocodylus niloticus). The irregular polygonal scales on the face and jaws of crocodiles are not controlled genetically. Instead, the patterns are generated through a self-organizational process in which the stiff skin cracks in a tensional stress field as the crocodile grows. See page 78. Photo: Michel C. Milinkovitch and Adrien Debry 0 w. T3 ^$ r' P. w$ ^
/ V- ?6 u& X6 {, ~5 d* a% M2 b; f
|
附件: 你需要登录才可以下载或查看附件。没有帐号？注册
-
总评分: 威望 + 20
包包 + 20
查看全部评分
|
发表于 2013-1-4 20:05
发表于 2013-1-4 22:14
