Huge meat-eating dinosaurs that stalked a vast floodplain some 150 million years ago in what is now Portugal left behind traces of their progeny: eggshells. Some of the eggshells, which belonged to two Jurassic-Era theropods, or a group of carnivorous dinosaurs, once harbored embryos of Torvosaurus, the largest predator of its day. "It was the equivalent of the T. rex in the Cretaceous," said study co-author Vasco Ribeiro, a paleontologist at the Universidade Nova de Lisboa in Portugal. Ribeiro and his colleagues arent sure how the eggs came to be abandoned. Read more and copyright photo at link: http://www.foxnews.com/science/2013/08/05/rare-dinosaur-find-abandoned-nests/#ixzz2b6uro1Er