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 ...

A snail with a shell spiraling to the right can’t mate readily with a lefty. So, changes in the single gene that controls shell direction have created new snail species, say researchers. Among the 20 ...

"Most snail shells spiral clockwise, but Ned’s curves the other way — an unusual genetic quirk found in roughly one in around 40,000 snails." Ned, at rear, the 1-in-40,000 left-whorling snail, checks ...