A mother’s hidden genes decide which way her snail baby spirals
Snails also can be left- or right-handed depending on which way their shells coil. | Photo Credit: Krzysztof Niewolny/Unsplash With a bit of penmanship, ‘e’ and ‘9’ can be made to look like mirror images of each other. While the ‘e’ swings counter-clockwise, the ‘9’ swings clockwise, written from top to bottom. Snails also can…
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