Rainbow sea slug spotted in Falmouth as species moves into south-west waters
Environment

Rainbow sea slug spotted in Falmouth as species moves into south-west waters

1 hour ago · Originally published 23 Oct 2026 7/10 Original headline: Country diary: Slugs? Dull? This one is pure showbiz | Charlie Elder
Usually found off the coasts of Spain and Portugal, the vibrant rainbow sea slug has been recorded in Falmouth during a community bioblitz. The species has been gradually spreading north with warming seas since its first UK sighting in 2022, offering a rare look at a creature that defies the typical appearance of its kind.
Source: Guardian Env Cornwall
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