Experts have attributed the spike in dolphin attacks in Fukui prefecture to a single bottlenose mammal
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00:00A lonely and potentially sexually frustrated dolphin has been blamed for a spike in attacks
00:05on swimmers in a Japanese seaside town. The bottlenose dolphin is believed to be
00:10behind 18 attacks near the town of Mahama so far this year, with one primary school-aged
00:15child's finger needing at least 20 stitches. At least six people were injured in attacks last
00:21year, leaving one swimmer with broken ribs. Another person was injured in a 2022 attack.
00:28It has led officials to warn that not only can the mammals bite you with their sharp
00:33teeth and cause you to bleed, but they can also drag you into the sea, which could be
00:38life-threatening. Despite their reputation as friendly animals, dolphin attacks can be fatal.
00:45In 1994, a dolphin in Brazil attacked two male swimmers who tried to ride it,
00:50killing one and injuring the other. The dolphin, nicknamed Tiao, was believed to have injured at
00:56least 22 people before that. Tadamiki Morisaka, a cetology professor at Japan's Mie University,
01:04said the dorsal fin of a dolphin spotted biting a man's fingers at a beach in Tsuruga,
01:09a port city next to Mahama, matched that of a 2.5-metre-long dolphin observed off the coast
01:15of Fukui province last year. The dorsal fin is like a dolphin's fingerprint, as each has
01:21distinctive notches, ridges and pigmentation. It is reasonable to assume that it is the same
01:26individual, as the wounds on the tail fin are similar to those of the dolphins seen off the
01:31coast last year, and it is rare for dolphins, which normally move in groups, to be alone for
01:36such a long time, Professor Morisaka told NHK. He added that male bottlenose dolphins communicate by
01:44play-biting each other. They are not trying to injure people, but are using the dolphin's way
01:50of communication with people, he said. Others have suggested various theories on why the
01:56same creature may be behind these attacks, including a desire for sex.