Paleontologist Kristi Curry Rogers talks about her work on a new species of long-necked dinosaur, and how the discovery of the animal's "brain case" in Madagascar is the key to its identity. She also discusses recent developments in the world of paleontology, including the unearthing of the world's largest bed of dinosaur fossils in western Canada, new evidence on dinosaur mating rituals, and what today's ostriches can teach us about how two-legged dinos moved through space.