Spinosaurus: A huge predatory dinosaur, built to swim A digital skeletal reconstruction and transparent flesh outline of Spinosaurus aegyptiacus. The bones suggest this dinosaur was built to swim. Color codes show the origin of different parts of the digital skeletal model. (Model by Tyler Keillor, Lauren Conroy and Erin Fitzgerald, Ibrahim et al., Science/AAAS) By AMINA KHAN contact the reporter Animal Research Scientific Research Museums University of Chicago This dinosaur was no landlubber! Scientists say Spinosaurus could swim like a champ Dinosaurs ruled the land for millions of years. Now scientists have discovered a fearsome species that could have wreaked havoc in its prehistoric waters. An unusual fossil whose parts were flung across two continents appears to be the first known semi-aquatic dinosaur, according to a report published Thursday by the journal Science. Measuring 9 feet longer than a Tyrannosaurus rex , the 95-million-ye