A global study highlights that a quarter of all freshwater fish, crustaceans, and dragonflies are at risk of extinction, with crustaceans being the most affected. The research, involving over 1,000 experts and published in Nature, reveals significant threats from pollution, habitat loss, and invasive species. The study calls for urgent action from governments and industries to improve environmental practices and monitoring to protect these vital ecosystems, which are crucial for providing clean water and supporting millions of people.