How the snail's shell got its coil
Successfully applying CRISPR gene editing technology to molluscs for the first time, researchers have now made snails with mutations in a gene called Lsdia1, which had previously been suggested - but not conclusively proven - to be involved in snail shell coiling; snails without a functional copy of Lsdia1 produce offspring with shells that coil to the left, showing that this single gene is responsible for rightwardcoiling.
