Unprecedented iron coating keeps serrated teeth razor sharp
                                
                                
                                    (Newser) -
                                    The Komodo dragon might be the closest thing to a living dinosaur, with its muscular tail, scaly skin, sturdy claws, and, it turns out, razor-sharp teeth unlike any seen before. The largest living lizard has curved, serrated teeth, similar to those of carnivorous dinosaurs, which help to rip apart the...