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Blue Dragon Sea Slug: Why It Matters for Mallorca

Learn what the blue dragon sea slug is and why sightings near Mallorca have led to beach warnings.

Published: April 22, 2026
Mallorca News

Answer

What is the blue dragon sea slug and why is it being talked about in Mallorca?

The blue dragon, or Glaucus atlanticus, is a small sea slug that can drift with ocean currents and feed on stinging marine animals. It has drawn attention around Mallorca because sightings along Spain’s Mediterranean coast have led to beach warnings in some places.

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