Mary M. Cerullo has been teaching and writing about the ocean and natural history for 40 years. Her career as an "ocean aficionado" began at the New England Aquarium in Boston and continues today as Associate Director of the conservation organization Friends of Casco Bay/Casco BAYKEEPER(R) in South Portland, Maine. Describing herself as a "science interpreter," Mary explains scientific research and environmental issues in ways that children and the general public can understand. Building on her background in marine science, informal education, and communications, she has written 16 nonfiction children's books, as well as a handbook for teachers on incorporating children's literature into the science curriculum. Her books have won numerous awards and starred reviews.