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You can boil a frog in tepid water. Five years ago, the CDU proved that a watched frog won't boil. Now the CDU set out, once again, to those verdant amphibian-filled ponds of yore, to find out whether you can lead a frog to a wheelbarrow in the first place, much less keep it there. To get the answer to this perplexing question, the CDU turned to Harold Heatwole, an expert on frog motivation and coeditor of Amphibian Biology Vol. The CDU tracked Heatwole to the department of zoology in the college of agriculture and life sciences at North Carolina State University.