For decades, scientists believed dinosaur fossils were little more than mineralized rock, with any original biological material long since destroyed by time. But an extraordinary study centered on a remarkably preserved Edmontosaurus fossil is challenging that assumption in a major way. Researchers led by the University of Liverpool uncovered strong evidence that traces of original organic molecules, including collagen, still exist inside dinosaur bones dating back roughly 66 million years. The discovery adds powerful new support to a controversial idea that has divided paleontologists for more than 30 years. Preserved Collagen Found in Dinosaur Bone The fossil at the center of the study is a 22-kilogram Edmontosaurus sacrum, part of the dinosaur's hip region, recovered from South Dakota's famous Hell Creek Formation. Edmontosaurus was a large duck-billed plant eater that lived alongside Tyrannosaurus rex near the end of the Cretaceous Period.…