Dr Zixiao Yang (IMAGE) University College Cork Caption Dr Zixiao Yang of University College Cork, who discovered that some feathered dinosaurs had scaly skin like reptiles today, thus shedding new light on the evolutionary transition from scales to feathers. (Image credit: Ruben Tapia/UCC TV). Credit Ruben Tapia/UCC TV. Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.