#MarineWildlife - The video below from the Guardian captures the moment when a brave Welsh tourist wrestled a shark away from a beach crowded with children in Australia.

As BBC News reports, 62-year-old Paul Marshallsea took charge of the situation by grabbing the two-metre-long dusky shark by the tail and dragging it away from the shallows at the beach on Queensland's Sunshine Coast - narrowly missing being bitten in the process.

"My instincts took over and I just grabbed the shark by the tail," said Marshallsea, who added that the ocean predator "nearly took my leg off in a split second - it was that quick."

Though few attacks by dusky sharks have been recorded, the species is regarded as "potentially dangerous" to humans due to their large size.