Michael Musnick is a citizen scientist who studies wood turtles in the Great Swamp -- a stretch of wetland about 60 miles north of New York City. He found turtles dying in the railroad tracks and proposed a solution to New York's Metropolitan Transportation Authority: tiny turtle bridges.
Filmed, produced by Shelley DuBois, Flora Lichtman. Additional footage and photographs from Michael Musnick. Edited by Annette Heist, Ira Flatow.