Latest Thomas R. Holtz, Jr. Stories

Scientists have caught a dinosaur in the act of evolving from meat-eater to vegetarian. The two-legged, feathered creature ate plants, but its bones show that the transition from its carnivorous ancestors was still in progress. All plant-eating dinosaurs were ultimately descended from a meat-eater, and switchovers to plant-eating occurred several times. The newly discovered species, which lived 125 million years ago in what is now Utah, could help scientists understand details of how the...