The waters of the Danube, which flow into the Black Sea, form the largest and best preserved of Europe's deltas. The Danube delta hosts over 300 species of birds as well as 45 freshwater fish species ...

Delta smelt are tiny fish — most ... degrade Delta habitat — the Center for Biological Diversity is working to ratchet up protections for this species. A Center petition spurred the California Fish ...

"The Danube Delta is a biodiversity hotspot, shelters hundreds of bird species, alongside prehistoric fish - such as sturgeons - and various plants. In addition, hundreds of years old traditions are ...