A very naughty 250kg bottlenose dolphin is making waves at a New Zealand beach. Moko the dolphin became a tourist attraction on New Zealand’s North Island after he swam into a harbour and never left. This was all well and good ‘til about six months ago, when he began growing more pushy and seemed to develop a liking for human ladies.

According to the Sydney Morning Herald, Moko has 'tipped over water skiers, stolen surfboards and trapped young women at sea, proving he's anything but Flipper of 1960s TV fame.'

 Now he’s become dolphina non grata for scaring some young female lifeguards and headbutting surfers. Several swimmers have had to be rescued over the past week because Moko won't let them return to shore, with one woman fearing she would drown  because she became so fatigued.

 "The problem is that Moko has transformed from a gregarious youngster to an exuberant and insolent hormone-pumped teenager. And a male teenager at that," explains Professor Mark Oram's of Auckland University.

Grant Fussell, the president of the local surf club, says Moko has lost his mojo with other dolphins and sees himself with a human partner. “"He relates more to humans," said Mr. Fussell, adding that it’s possible that Moko could try to mate with a human.

Naughty Moko.