Rivers, lakes and wetlands across the planet are still revealing remarkable biodiversity. In 2025 alone, scientists formally described 309 previously unknown freshwater fish species—almost one every day. The discoveries span five continents, from African rivers to Asian caves, highlighting the extent of life yet to be documented in freshwater ecosystems.
(c) David Clode

Plus de 300 nouvelles espèces de poissons d’eau douce en un an

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Les rivières, lacs et zones humides du monde continuent de révéler leur incroyable biodiversité. En 2025, les scientifiques ont décrit 309 nouvelles espèces de poissons d’eau douce, soit presque une découverte par jour. Ces espèces proviennent de cinq continents, des rivières africaines aux grottes d’Asie.

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