. >> it also happened to his wife kris tompkins, another retail mogul. the ceo of patagonia. their ecological philanthropy began in 1991, when they started purchasing swaths of land in southern chile, creating the million acre douglas tompkins national park. >> we just got this thing rolling that ended up being 14 national parks in almost 15 million acres. we realized that just saving the land was actually just a strategy towards something else that we were really after, which was, how do you create fully functioning ecosystems? >> in ibera that meant a return of the jaguars. they acquired captive animals and brought them here, to san alonso island in the middlof the park. we flew there with biologist sebastian di martino, conservation director of rewilding argentina. he and his team built a one of a kind jaguar breeding center, with jurassic park style enclosures. the cubs learn to hunt by tapping into their instincts and from their mothers' examples. the team takes great pains to avoid getting anywhere near the cubs, for fear they might lose their natur