The Biodibal project by the University of the Balearic Islands (UIB) is actively studying opisthobranchs—vibrant, toxin-rich sea slugs and sea hares—across the Balearic Islands to enhance knowledge of local marine biodiversity. The initiative, sparked by diver observations, recently published its first annual yearbook cataloguing 56 species documented around Mallorca. This citizen science effort involves recruiting divers and snorkelers to contribute observations, building a database that aids understanding of species distribution, ecology, and potential threats. With expanded input from Ibiza and Formentera in 2024, the project aims to deepen insights into the islands’ marine ecosystems. For the full article, please visit Diario de Ibiza website here.