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![](http://www.firstlight.cn/upload/imgfile/200912/8/2009128164426.jpg)
Snail shell spiral switched(图)
Snail shell embryo structure the physical appearance snail newborns
2009/12/8
Researchers in Japan have altered the destiny of a rout of snails by changing the chirality of their shells before birth. By delicately manipulating a batch of developing embryos, the scientists succe...