Personally I feel sorry for the Scalloped hammerhead as it was rendered virtually helpless by the fishing line, but the big Tiger was just doing what comes naturally - taking advantage of an unexpected opportunity for an easy meal.
The magnificent Greenland shark turns out to be the oldest living vertebrate on earth (it was previously thought to reach 'only' around two hundred years or so), if a medium sized five-metre specimen lives for four centuries then how old must the very largest (seven to possibly eight metres) of these mighty predators actually be?