A lonely dolphin, believed to be sexually frustrated, is suspected of causing multiple attacks on swimmers in central Japan, particularly near Mihama, where 18 injuries have been reported this year alone. Experts suggest that this male Indo-Pacific bottlenose dolphin may be displaying mating behaviors, as it has previously attempted to press its genitals against people. The dolphin's behavior could also stem from it being ostracized from its social group, leading to potential aggression when approached by humans. Cetology professor Tadamichi Morisaka noted the unique markings on the dolphin's dorsal fin, linking it to previous attacks, emphasizing that dolphins usually do not act alone. While generally friendly, dolphins can inflict serious injuries if they feel threatened or provoked. Given the history of dolphin attacks, officials have begun issuing warnings to beachgoers about the potential dangers posed by this particular dolphin.