Holotype trackway of Rionegrina pozosaladensis igen. et isp. nov. (a–c) Orthomosaic, digital elevation model and interpretative drawing of the holotype. (d,e) Detail of orthomosaic and digital ...
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Why birds are the only surviving dinosaurs
Birds today have dinosaur DNA. They have dinosaur blood in their veins. Birds evolved directly from Velociraptor-type animals and are the only true dinosaurs that still exist. Steve Brusatte is a ...
Teeth marks made on the leg bone of a large avian reptile known as a terror bird 13 million years ago suggest an even bigger predator may have killed it, scientists ...
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