Snail Shell Coiling (image) The Company of Biologists Share Print E-Mail Caption Knocking out one gene in the snail Lymnaea stagnalis reverses shell coiling. In contrast to the wild-type dextral snail (right), a CRISPR-created snail shows sinistral coiling (left). Credit Dr Hiromi Takahashi of the Kuroda laboratory. Usage Restrictions Full attribution is required, and if reporting online a link to dev.biologists.com is also required Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.