In a  Wednesday Jan. 9, 2013 photo provided by Michigan State University, an early prototype of Xiaobo Tan's robotic fish, called Grace, swims in a tank in his lab. Grace, for Gliding Robot Ace., is designed to track and monitor Great Lakes aquatic life such as trout, sturgeon and walleye. The university’s College of Engineering announced Friday, Sept.. 26, 2014 that it is developing the robofish in collaboration with the U.S. Geological Survey and has received a $1 million National Science Foundation grant for the work. (AP Photo/Michigan State University, G.L. Kohuth)

EAST LANSING, Mich. (AP) — Michigan State University is using a $1 million federal grant to build a better robofish that can observe the feeding and migration habits of trout, walleye, sturgeon and other Great Lakes aquatic species.

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