Using concept maps, a Kellert-type (S. R. Kellert, 1985) inventory, and self-report behavioral items, this cross-age study assessed public knowledge, attitudes, and behaviors toward bottlenose dolphins. Results suggest that this important megafaunal species is poorly understood by the public at large, and that negative "utilitarian" attitudes and potentially harmful behaviors are widespread, except among well-educated college students who have benefited by direct instruction. Researchers are encouraged to undertake companion studies on other species.