Terry Gross

His new book, Dissident Gardens, follows three generations of an activist family, from Rose, a secular Jew and communist, to Sergius, her commune-raised grandson. The book is fiction, but its characters were inspired by Lethem's own family story.

Kittens don't play -- they hunt. And their aloof appearance has evolutionary roots. A new book explains cats' mysterious nature and how their relationship with humans has changed over the years.

Cradle to Grave brings at-rish youth into a Philadelphia hospital to get them to think about the consequences of getting shot. "You only have to die one time," the director tells them, "but the people that you leave behind die a little bit each and every day for the rest of their lives."