BEAK OF THE FINCH, THE（ISBN=9780679733379）

　　Rosemary and Peter Grant and those assisting them have spend twenty years on Daphne Major, an island in the Galapagos studying natural selection. They recognize each individual bird on the island, when there are four hundred at the time of the author's visit, or when there are over a thousand. They have observed about twenty generations of finches -- continuously.
　　Jonathan Weiner follows these scientists as they watch Darwin's finches and come up with a new understanding of life itself.

　　Jonathan Weiner, formerly a writer and editor for The Sciences, is the author of Planet Earth and The Next One Hundred Years. He lives in Bucks County, Pennsylvania, with his wife and their two sons.