Dino proteins could have been sheltered

Analysis of collagen structure backs up claims of preserved tissue finds

Reports in recent years of soft dinosaur tissue from fossil bones of a T. rex and a duck-billed hadrosaur elicited skepticism from the scientific community. But a new analysis of the bits of protein that survived supports claims of ancient origins.

TWIST AND REPEAT Protein bits extracted from dinosaur bones are found in protected areas within rat and human collagen fibers, new research shows, boosting claims the proteins could have survived inside fossils.