Periwinkles adapt quickly to new environment

Common periwinkles struggle to survive in one of the ocean’s most taxing environments – rocky shores. To cope with frequent environmental changes, they have developed genetic kits that help them to adapt quickly to a specific shore environment, according to new research.

“The periwinkles among stones have thick shells and are large, which helps them withstand attacks from all the crabs found among the stones. Periwinkles on rock faces are very small and light, but they have a large foot they use to cling to the rocks when the waves smash against them,” says Kerstin Johannesson, who headed the Swedish research team.

Read the full news article: Genetic 'Toolkit' Helps Periwinkles Gain Advantage on the Seashore