Freshwater Mussels Are Dying—Which Is the Likeliest Culprit?

In some cases, humans have harnessed the shellfish’s ability to filter water. In 2019, for example, Pennsylvania invested $7.9 million in a mussel hatchery in Philadelphia aimed at improving water quality in the Delaware and Susquehanna watersheds, which together provide drinking water to more than 25 million people. In fact, most water bound for our […]