MELISSA BLOCK, HOST:
From NPR News, this is ALL THINGS CONSIDERED. I'm Melissa Block.
ROBERT SIEGEL, HOST:
And I'm Robert Siegel. A new novel explores life on Earth tens of thousands of years ago. It's called "Shaman" by science fiction writer Kim Stanley Robinson. Our reviewer, Alan Cheuse, says it's worthy of a spot on the bookshelf between "The Inheritors" and "The Clan Of The Cave Bear."