NatureTech is a terrific new DVD series from the Smithsonian Network that shows us some of the best ideas about energy, flight, and building materials technology come from observing nature. Biomimetics is the new science of looking to nature for answers to modern challenges. Flies improve search and rescue and cockroaches inspire space engineers. Fish become cars and airplane design mimics birds. Gorgeously photographed, each episode is like a cross between CSI and McGuyver.