Rick Wahle will present “The American Lobster — Poster Child of a Changing Marine Ecosystem” at 10:30 a.m. July 19 in Brooke Hall at the University of Maine Darling Marine Center in Walpole. Wahle directs the Lobster Institute, a center of scholarship and outreach in the university’s College of Natural Sciences, Forestry, and Agriculture. The read more Learn why lobster is the poster child of a changing ecosystem