Hidden in a limestone quarry near the border between Belgium and the Netherlands, researchers found small bone fragments sticking up out of a rock that could fit in their palms. They could tell that the delicate, light bones belonged to a bird.
원문출처 : https://www.cnn.com/2020/03/18/world/wonderchicken-fossil-modern-birds-scn/index.html
원문출처 : https://www.cnn.com/2020/03/18/world/wonderchicken-fossil-modern-birds-scn/index.html