Expert shares egg-citement of dinosaur discoveries

Tyrannosaurus rex, a dinosaur with a fearsome reputation, might actually have been a scavenger, as research has shown that its bones were unsuited to rapid running and hunting, according to Zhao Bi, a repairer of dinosaur fossils.

Zhao, director of the Paleontological Fossil Research Center at the Hubei Institute of Geosciences, said the dinosaur era was a time of great proliferation for plants known as gymnosperms, with ginkgos, cycads, pine cypresses and other gymnosperms making up most of Earth's forest vegetation at that time.

He said dinosaurs' ages can be determined by looking at slices of their fossilized bones, which reveal a structure similar to tree rings.