Leslie Day is an environmental and life science educator at The Elisabeth Morrow School and an adjunct faculty member at Bank Street College of Education. She developed the City Naturalists Summer Institute with the Central Park Conservancy and has a doctorate in science education from Teachers College Columbia University. She and her husband live on a houseboat on the Hudson River in Manhattan. Mark A. Klingler is a scientific illustrator trained at Carnegie Mellon University and Pennsylvania Academy of the Arts. His work has appeared internationally in major scientific journals and popular m...