One of the world’s leading eel biologists is in Missoula to lecture at the University of Montana. Dr. Michael Hansen is a professor and researcher with Aarhus University in Denmark. The European eel is listed as endangered, and the American eel is seriously threatened. In this feature interview, News Director Sally Mauk talks with Hansen about his research – and about why we should care about the dwindling eel population. Hansen says eels are one of the big classical mysteries in biology.