Mark Haddon has been working at the Smithsonian Environmental Research Center (SERC) in Edgewater, MD since 1984. Starting out as a research technician in the Crab Lab, he studied populations of finfish and shellfish as indicators of the health of the Chesapeake Bay. One of his main research programs focused on blue crabs. In particular, the correlation between the molt stage and geographic distribution within the Rhode River. In 1989, he became Director of Education at SERC and incorporated many of his research skills into the education programs for students and teachers. Now he designs environmental programs at SERC that integrate research methods and collecting data. He has a Bachelor’s degree in biology and teaching, and a Master’s degree in Secondary Education.