Research news on mollusks

Mollusks are a highly diverse phylum (Mollusca) of invertebrate animals that constitute a major topic in zoology and evolutionary biology, encompassing classes such as Gastropoda, Bivalvia, and Cephalopoda. They are characterized by a soft, unsegmented body typically organized into head, visceral mass, and muscular foot, with many species secreting a calcareous shell from a specialized mantle. Research on mollusks addresses themes including biomineralization, neurobiology (especially in cephalopods), developmental and evolutionary genetics, functional morphology of feeding and locomotion, ecological roles in marine and freshwater systems, and their importance as model organisms in environmental toxicology and climate-change impact studies.

Camouflaging snails change color in the rain

How does a stripy tree snail hide from hungry birds? The Hypselostyla camelopardalis from the Philippines and Reinia variegata from Japan have both evolved a form of dynamic camouflage to survive. Their light-colored patterns ...

125-million-year-old fossil reveals 'pregnant' shellfish

An international team of scientists led by Dr. Graciela Delvene of the Geological and Mining Institute of Spain (CSIC) has uncovered the oldest known evidence of maternal care in shellfish, revealing that some freshwater ...

Octopuses learn mirror-guided navigation to locate prey

Octopuses are remarkably intelligent creatures, as was demonstrated by Inky the Octopus's famous escape from the National Aquarium of New Zealand through a drainpipe back to sea in 2016. A new Dartmouth study shows octopuses ...

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