The new BBC documentary series 'Dynasties' follows five groups of animals for up to two years, revealing their social relationships: kinship, affection, and sometimes deadly power struggles. The show's executive producer Michael Gunton talks about filming lions, tigers, painted wolves, emperor penguins, and chimpanzees.
Rock critic Ken Tucker reviews new albums by guitarists Steve Gunn and Michael Chapman.
Growing up, Judith Grisel struggled with alcohol, marijuana and cocaine. Now, as a neuroscientist, she's working to understand the biological basis of addiction. Her new book is 'Never Enough.' Grisel talks about how various drugs affect the brain, and her own experience with addiction.
