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Our lifestyles and environment can change the way our genes are expressed. 13:25
Genetics and brain physiology can affect a dog's personality and behavior. 03:09
Full Program: Astronomers on the brink of finding “another Earth” in our galaxy, using a new planet-hunting machine: the Kepler telescope; Rudy Tanzi, a pioneer in discovering genes for Alzheimer’s disease, and... 52:19
Meet a genetically modified mouse that can't sense bitter. 03:08
What made America? What makes us? These two questions are at the heart of the new PBS series Faces of America with Henry Louis Gates, Jr. Building on the success of his series African American... 00:32