Water

Minnesota's native mussels: Still in peril, but signs of hope

Closeup of hands holding different mussel species.
Scientists hold a variety of mussel species from the St. Croix River near Taylors Falls, Minn. Forty species of native Minnesota mussels live in the St. Croix, including muckets, monkeyface, pimpleback, pistolgrip and winged mapleleaf mussels.
Christine T. Nguyem | MPR News