KNOXVILLE, Tenn. — Tennessee’s rivers and streams are among the most biodiverse freshwater systems in the world, but one of their most important inhabitants is increasingly at risk. Freshwater mussels ...

LAREDO, Texas— Responding to a 2020 lawsuit by the Center for Biological Diversity, the U.S. Fish and Wildlife Service today proposed to protect two species of Texas freshwater mussels under the ...

First, the invaders claimed Lake St. Clair, on the border of Michigan and Canada. By the early 1990s, they’d taken hold in the Great Lakes, then made their way into the Mississippi River Basin. The ...