If you thought the title character in Anaconda was far-fetched, consider the newest exhibit slithering into the Las Vegas Natural History Museum on October 15. Titanoboa: Monster Snake, a collaboration between the Smithsonian Tropical Research Institute, the University of Nebraska-Lincoln and the Florida Museum of Natural History, will feature a realistic replica of the 60 million-year-old, 48-foot-long, 1.5-ton snake and two vertebrae casts. Titanoboa cerrejonensis, the largest snake ever unearthed, was discovered by a team of scientists working in an open-pit coal mine in Colombia. The reproduction of the snake is based on fossilized vertebrae and skull fragments found there. The mighty Titanoboa will remain in Las Vegas until January 8, after which it will wriggle its way to its next den, the Mississippi Museum of Natural Science.