Smithsonian scientists and colleagues report that snails successfully crossed Central America, long considered an impenetrable barrier to marine organisms, twice in the past million years—both times ...

Is it a butterfly? A bee? An alien? Nope! It’s a sea snail. A sea snail. From the sea. This aptly-named Arctic “sea butterfly” (Limacina helicina) is the subject of a new study in the Journal of ...

Sea butterflies are microscopic snails that swim in Arctic waters using wing-like structures from their shell opening. David Murphy from the Georgia Institute of Technology, USA, explains how he and ...

Some ocean-dwelling creatures ended up with common names that seem to belong to another animal entirely: A sea cow has neither horns nor an udder. A sea lion lacks a tawny mane. And jellyfish aren't ...