90-million-year-old embryo from 'exceedingly rare' Gigantoraptor discovered

Twenty-five years ago, a mysterious egg was discovered. For a good portion of that time, the unknown specimen that failed to hatch has been studied by paleontologists of the University of Calgary in Alberta, Canada. Finally, the dinosaur embryo has been identified and given a scientific name, and researchers are proclaiming that the discovery is more profound than they once thought. The study, published on May 9 in the journal Nature Communications, was co-led by researcher Darla Zelenitsky,...