In this series of episodes, we talk to many of the scientists at Blue Sky Studios, which created the Ice Age series of animated features, including the recently released Ice Age: Dawn of the Dinosaurs. In episode 2, we hear from the research and development team about their backgrounds, the kinds of technical challenges they face and the ways they use math and computers to solve those problems. Web sites related to this episode include www.blueskystudios.com; www.iceagemovie.com; www.scientificamerican.com/article.cfm?id=magic-and-the-brain