It's Hard To Believe Something This Big Ever Lived
The Smithsonian has built a replica of a predator that lived 60 million years ago. The Tutanoboa was a giant snake that lived during the Palaeocene epoch. This thing was the largest predators on Earth at 48-feet long and weighing in at 2,500 pounds. The Smithsonian has recreated this snake for a new TV show about extremely large snakes.