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本帖最后由 细胞海洋 于 2013-1-26 22:37 编辑 5 }- i$ ?$ g) ]: ]5 f. B9 U9 P
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: T! C. t) v& ]+ Z9 JCOVER A juvenile male Pteropus alecto (black flying fox)
, s! r% Z1 X" j/ p; X+ Aspreading its wings (for adults, average wing span: ~1 meter; average weight
! b6 ]7 d+ Y$ H- l' s2 F. _7 }1 e( wrange: 500 to 1000 grams). Bats, the only mammals capable of sustained flight,
: q! \, R9 J1 f5 M$ {+ U* M" Vare among the world's most diverse mammals and are host to numerous deadly 2 [5 j C8 [# ] }+ m
viruses. Comparative genome analyses have shed new light on the evolution of
2 ^) a+ N1 b% ?bat-specific traits, including flight and immunity. See page 456. Photo: Martin Asser # c' o L( D2 m
Hansen/www.maasha.dk
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发表于 2013-1-26 07:42
发表于 2013-1-26 23:00
xie xie
