The 6-foot-long, 140-pound Chinese giant salamander is a being that defies belief—and seemingly the laws of the physical universe. It’s the largest amphibian on the planet, a gargantuan (though harmless) beast that rests on river-bottoms hoovering up fish. Once it grows big enough, not many critters dare touch it—save for, of course, humans. Particularly the conservationists who are working to save the creature.