A massive dead shark found off Australia has scientists on edge, and the reason goes far beyond the carcass itself. The massive predator, discovered near the coast, is drawing urgent attention from

The moment the winch began to strain, the crew off Port Lincoln, South Australia, knew something was wrong.The net, set for southern bluefin tuna, came up slow and listing to one side. The load sat in a way tuna do not sit. When the catch finally surfaced, wedged beneath it with mesh wrapped hard across the gills and both pectoral fins, was a shark. It was dead.The animal was described as unusuall…