Fossil Find: A Big but Deft Predator?
Argentine Remains Suggest Dinosaur Hunted in Packs
By Guy Gugliotta
Washington Post Staff Writer
Tuesday, April 18, 2006; Page A03
Also, added University of Chicago paleontologist Paul Sereno, it would be a mistake to dismiss the larger predators as muscle-bound plodders. "They weren't ballet dancers, but they would have been something to reckon with," Sereno said. "This wasn't the body of a scavenger. These were active animals."