Pterosaurs ruled the skies during the age of the dinosaurs, but scientists have long debated if they actually had feathers.
원문출처 : https://www.cnn.com/2022/04/20/world/pterosaur-feather-colors-scn/index.html
원문출처 : https://www.cnn.com/2022/04/20/world/pterosaur-feather-colors-scn/index.html