A dolphin that bit a 55-year old man swimming near a beach in western Japan on Tuesday - the latest in a string of attacks in the area - was probably just trying to play, according to an expert.

‘Separated’ dolphin trying to play likely behind series of bites off Japanese beach, researcher says

A dolphin that bit a 55-year old man swimming near a beach in western Japan on Tuesday - the latest in a string of attacks in the area - was probably just trying to play, according to an expert.