Minnesota Public Radio slideshow:
The decline and fall of the Mississippi
<Previous1 2 3 4 5 Next>
For the past few years, scientists have worked to reintroduce the endangered Higgins Eye Pearly Mussel into the Mississippi. The program appears to be working, which is a sign the water quality has significantly improved. (Photo courtesy of Mike Davis/Minnesota DNR)

For the past few years, scientists have worked to reintroduce the endangered Higgins Eye Pearly Mussel into the Mississippi. The program appears to be working, which is a sign the water quality has significantly improved.

(Photo courtesy of Mike Davis/Minnesota DNR)
©2009 Minnesota Public Radio : Terms of Use