When you think of a fearsome, sharp-toothed predator, a squid probably isn't the first animal that comes to mind. But these complex creatures have sophisticated eyesight, a strong beak to crush shells ...

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 ...