“Delphy 3D: The Guardian of Capo Granitola” is not just a comic book, it is a research, innovation and development project that combines science, art and popularization to tell, with a new perspective, the life of cetaceans and that of the researchers who study them. The drawings are not graphic inventions but the result of the reworking of photos and scientific texts by researchers, technologists and technicians of the CNR-IAS of Capo Granitola who work daily with passion to transform the fate of a beached cetacean, considered by law a “waste” to be disposed of, into a resource for knowledge, education and conservation of biodiversity. A journey between science and storytelling that unveils peculiarities, legends and problems of the cetaceans of the Sicilian Channel, once feared as “monsters” and still referred to as the “Guardians of the Cape Granitola Lighthouse” who saved shoals of fish by dispersing them from fishermen’s seine nets. “Delphy 3D” is a message of hope and awareness that knowledge is the highest form of respect we can have for nature and helps us look at and cherish the “Mare Nostrum” as a precious book yet to be read. The comic strip was produced as part of the Spoke 7 project “Biodiversity and Society: communication, education and social impact” of the PNRR National Biodiversity Center.