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

Mulitple images of surface ruptures start emerging

#aardbeving #earthquake #SurfaceRupture #left-lateral #sinistral

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