Here is what the page “Gene Behind Left- or Right-Coiling Snail Shells Discovered by Nottingham and Tohoku Resear” contains. Scientists from the University of Nottingham and Tohoku University have identified a gene that controls whether Japanese Euhadra snails develop shells that coil to the left or right. The discovery, based on studies of wild snails in Japan, sheds light on a fundamental question in developmental biology: how mirror-image asymmetry arises in nature. The same mechanisms may help explain why human bodies are consistently handed, with hearts on the left and livers on the right. Understanding this gene could provide insights into birth defects involving organ positioning.
The research highlights how a single genetic switch can flip an entire body plan. It also underscores the value of studying diverse species to uncover universal principles. Future work may reveal how such asymmetry evolved and whether similar genes operate in other animals, including humans. This listing links straight to the original page, where the content is available in full.