In a recent paper published in the journal Science Advances, Trussell and collaborator James Corbett document how the snails ...

These periwinkles are officially known as Littorina obtusata, their species name referring to their relatively flat shape and giving them their common name of flat periwinkles. They are also ...

the smooth periwinkle (Littorina obtusata) and the smaller rough periwinkle (Littorina saxatilis), as Foster's Daily Democrat explained. However, because the common periwinkle is invasive ...

obtusata (L.), and three sibling species of ... These five species have existed for a maximum of 3.5–4 Myr when their ancestral Littorina crossed from the Pacific into the Atlantic following ...