Prepare For Takeoff
Scientists may have an explanation. In a paper in the current issue of the journal Nature, Argentine paleontologists Fernando Novas and Pablo Puerta announce the discovery of a missing link between birds and their dinosaur ancestors. Unenlagia (Mapuehe Indian for “half bird”) comahuensi (“of northwest Patagonia”), they report, boasts several features that “are more birdlike than in any other [nonbird] yet discovered.” Yet Unenlagia, 90 million years old and found in the sandstone of an ancient riverbed in Patagonia, was no bird....