Dense groups of marine snails called Littorina saxatilis once thrived on a group of Swedish islands called the Koster archipelago. But in 1988, a massive bloom of toxic algae hit the islands, and ...

Researchers have found a type of snail, new to South Florida, that might have arrived as a stowaway on a ship. The sea snail, officially called a “Naria turdus,” is supposed to be in the Eastern ...

Semi-natural, nutrient-poor calcareous grasslands are local biodiversity hotspots that are increasingly threatened by land use intensification, abandonment, or indirect effects from adjacent habitats.