 
        
            Dinosaur with proto-feathers
            Sinosauropteryx
            The full name of this animal, Sinosauropteryx prima, means
            "first Chinese winged lizard." Its discovery in the mid-1990s
            delighted many paleontologists who suspected that birds are close
            kin to dinosaurs. This fossil offered evidence in the form of downy,
            short feathers all along the animal's head, back, and tail. A
            carnivorous dinosaur about the size of a greyhound,
            Sinosauropteryx likely ran swiftly on its two hind legs. With
            fuzzy feathers just a few millimeters long, it is unlikely that it
            ever flew. The feathers could, however, help keep the dinosaur warm
            through cool nights in the temperate forest.