#sinistral — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #sinistral, aggregated by home.social.
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Letter to Nature, 1921. If only it were so easy these days. Do you think the offer of sinistral snails is still open? #snails #sinistral #nature https://www.nature.com/articles/108403e0
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CW: Snakes (and snails)
Speaking of #dextral and #sinistral #snail shells, they often occur via co- #evolution with #predation:
“Asian snail-eating #snakes (Pareas) have more teeth on the right mandible and specialize in predation on the clockwise-coiled majority in shelled snails by soft-body extraction. Snails have countered the snakes’ dextral-predation by recurrent coil reversal, which generates diverse counterclockwise-coiled prey where Pareas snakes live.”
🐌 🐍
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4820687/#!po=26.9231
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A day spent marking Evolutionary Biology of Animals exam scripts, remotely, rounded off with counting Auricullela shells in the Bishop museum collection. Satisfying to find rare dextrals in an otherwise sinistral species! #chirality #snails #BishopMuseum #sinistral #Evolution
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The vast majority of #gastropod species has #dextral (right-handed) shell. #Sinistral individuals are extremely rare in snails. Here is a very nice citizen science project investigating the developmental origin of this #chirality. #science biology #ontogeny #snail #shell #citizenscience
📄 Davison et al. (2020) Internet ‘shellebrity’’ reflects on origin of rare mirror-image snails.’ Biology Letters 16:20200110 http://dx.doi.org/10.1098/rsbl.2020.0110