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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 ...

A 30-year-long study of a small population of marine snail shows how evolution can adapt to environmental changes quite rapidly. This study revealed how a specific ecotype of the snail changed its ...

Snails on a tiny rocky islet evolved before scientists' eyes. The marine snails were reintroduced after a toxic algal bloom wiped them out from the skerry. While the researchers intentionally brought ...