How do paleontologists study fossils? What can fossils tell us about earth's past climates? What went into the creation of the Smithsonian Channel's documentary Titanoboa: Monster Snake? Titanoboa is the world's largest snake, it would have been 48 feet long and would weigh 2,500 pounds. Dr. Jason Head, Vertebrate Paleontologist, shares his experience in studying Titanoboa's fossils and what these fossils can tell us. The fossils are clues to scientists who can use them to reconstruct earth's history.