Hadrosaur remains include fragments of several proteins, tests suggest
As unlikely as it seems, the fossilized remains of an 80-million-year-old dinosaur can still contain bits of soft tissue and fragments of proteins.
Mary H. Schweitzer, a vertebrate paleontologist at North Carolina State University in Raleigh, and her colleagues report in the May 1 Science that they’ve recovered flexible tissue from the 80-million-year-old fossil femur of a plant-eating dinosaur called a hadrosaur. The tissue resembles collagen from the demineralized bones of modern-day birds — a group that many paleontologists consider to be closely related to dinosaurs.
In 2005, Schweitzer and several o