Science

Scientists uncover mystery of how snail shells coil to the right or to the left

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 16/10/2026, 23:55:25 UTC.

Briefings

Researchers from the University of Nottingham and Tohoku University identified a specific gene controlling left- or right-coiling in Japanese Euhadra snails. This discovery aims to clarify the genetic basis of handedness, potentially linking snail shell orientation to human body asymmetry. The study focused on wild snails in Japan to observe natural variations in shell morphology.

Key points

• A specific gene was identified in Japanese Euhadra snails that determines shell coiling direction.
• The study involved wild snails in Japan to observe natural variations in shell morphology.

Context

This research provides insight into the genetic mechanisms behind handedness, potentially linking snail shell orientation to human body asymmetry.

Limitations

The evidence is limited to a single gene identified in Japanese Euhadra snails; the study did not examine other snail species or investigate the broader evolutionary implications of this trait.

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