This special issue, in the International Journal of Tropical Biology and Conservation (Revista de Biologia Tropical), is focused on scientific research in the North Pacific of Costa Rica and the South Pacific of Nicaragua. It features many publications by our colleagues at ACG and at the University of Costa Rica. It is co-edited by GDFCF board member Dr. Jorge Cortés Núñez, who says he hopes "these publications will have a positive impact on the development of research and conservation in the region." The publication is dedicated to Drs. Dan Janzen and Winnie Hallwachs for "their invaluable contribution to the conservation of the North Pacific of Costa Rica." All the articles can be downloaded here. Topics range from subtidal habitat diversity to black coral forests to the residency of bull sharks.