food web. patagonia's fjords are now bursting with life. running for 1,000 miles up the west coast, this is one of the most extensive fjordland regions on earth. fed by dozens of these fjords is an incredibly rich feeding ground, the corcovado gulf, and heading straight for it is the largest animal that has ever lived. a blue whale. weighing nearly 200 tons, he's twice as heavy as the largest dinosaur.