Biologists keep an eye on walleyes

DULUTH, Minn. -- The tail of the huge mama walleye broke the surface of the water, flexing slowly, side to side. It was a massive tail, as wide as a handspan. Soon it would be fanning the tannin-stained water of the St. Louis River over a patch of gravel as she deposited her payload of eggs.

But not today.

Full story and photos:

 http://www.xploreutah.net/story/biologists-keep-eye-walleyes