Most people have encountered squid through their local seafood menu or field trip to an aquarium. Unlike octopuses, which are named for their eight arms, squid have 10 individual appendages. They most ...

Cephalopods comprise one of the most morphologically and ecologically diverse classes of mollusks, tracing their origins to the Late Cambrian. Extant lineages fall into two principal groups: ...

The intricate ram’s horn squid shell is only about the size of a fingernail. Compared to other cephalopod species, the shell structure has not degraded over time. As part of this study, researchers ...