clipped from: www.frostfirezoo.com 
It is the moment a scientist patted a ferocious Great White Shark that burst out of the water alongside his boat off the coast of Australia.
The shark had been lured to the boat with chunks of bait as part of tests on a "Shark Shield'" - an electronic device designed to ward sharks away from surfers.
The extraordinary picture was taken in 2007 by scientists who were exploring whether the devices attracted sharks more than they repelled them.
The Shark Shield trial developed from the inquest of 23-year-old Jarrod Stebhens, who was killed by a 5m great white shark while diving off Glenelg in South Australia in 2005.
