Colossal squid hooked with rings the size of tractor tyres February 22, 2007 - 3:30PM New Zealand fishermen in the Ross Sea have caught what's thought to be the largest squid ever found.Its estimated weight is about 450 kilograms.The species is known as the colossal squid, shorter but much heavier than the better known giant squid.It was hauled to the surface while munching on one of its favourite foods, a Patagonian toothfish which the fishermen had hooked on a longline.Dr Steve O'Shea, from the Auckland University of Technology, says the previous largest find weighed 300 kilograms.He...