If you have not yet submitted your DNA to the National Geographic, Genographic Project, a new film, "The Human Family Tree," airing August 30 might inspire to do so. For those who are not familiar, the Project is a a five-year research partnership led by National Geographic Explorer-in-Residence Dr. Spencer Wells, aimed at studying the migratory history of the human species through DNA contributed by hundreds of thousands of people from around the world -- everyday people like you and me. The film provides insight into how the Project works and what can be learned: "On a single day on a single street, with the DNA of just a couple of hundred random people, National Geographic Channel sets out to trace the ancestral footsteps of all humanity." To learn more, visit The Human Family Tree web site. The site offers a convenient Time Zone button to indicate when the film will air in your area.