This artist’s conception shows the bird-like feathered dinosaur Falcarius utahensis. A mass graveyard with fossils of hundreds to thousands of the creatures was found in Utah by paleontologists from the Utah Geological Survey and the Utah Museum of Natural History at the University of Utah. They reported the discovery in the May 5, 2005, issue of the journal Nature. The small, 4.5-foot-tall dinosaur lived 125 million years ago and represents a missing link between earlier, vicious meat-eaters and later, plant-munching herbivores. Credit: Mike Skrepnick.