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 ...

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 ...

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 ...