Environment

f2a0cb0c05b43e13540f6a7067008353.jpg

FILE - In this July 16, 2010 file photo, a scientist with the Hammond Bay Biological Station near Huron Beach, Mich., holds a female sea lamprey. The lamprey uses its disk-shaped mouth and sharp teeth to fasten onto fish and suck out their bodily fluids. According to the U.S. Fish and Wildlife Service, a sea lamprey will destroy up to 40 pounds of fish during its parasitic adult stage. Fish and Wildlife will be surveying the St. Clair River from May 20 to June 26, 2014 to estimate the sea lamprey population in the river. (AP Photo/John Flesher, File)