Mollusk Eyes Reveal How Future Evolution Depends on the Past. By Viviane Callier. February 29, 2024. The visual systems of an obscure group of mollusks provide a rare natural example of path-dependent ...

Mollusk eyes could help unravel a long-standing biological mystery. By Viviane Callier. llustration by Matteo Giuseppe Pani. Sources: Getty / Alamy. March 9, 2024. Share. Save.

Not all creatures have soft squishy eyes like us mammals — the mollusks known as chitons have hundreds of primitive visual sensors all over their body, and they’re made of a rock called aragonite.