Pregnant T-rex fossil may help explain evolution of birds

Scientists believe there may be fragments of dinosaur DNA preserved in a pregnant Tyrannosaurus-rex fossil found in Montana. The 68-million-year-old find may also shed light on the evolution of egg-laying and dinosaur gender differences. RT America's Manuel Rapalo reports. Find RT America in your area: http://rt.com/where-to-watch/ Or watch us online: http://rt.com/on-air/rt-america-air/ Like us on Facebook http://www.facebook.com/RTAmerica Follow us on Twitter http://twitter.com/RT_America