The Field Museum's new Spinosaurus exhibit is longer than its famed T. rex named Sue. The exhibit hangs 12 feet above the museum floor and only took 10 hours to assemble. This Spinosaurus is the only ...

WASHINGTON, Aug 15 (Reuters) - Tyrannosaurus subdued prey with raw power, using bone-crushing bite force. But other meat-eating dinosaurs that rivaled T. rex in size used different approaches.