Rosemary and Peter Grant and those assisting them have spend twenty years on Daphne Major, an island in the Galapagos studying natural selection.
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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.
For more information about the title The Beak of the Finch: A Story of Evolution in Our Time, read the full description at Amazon.com, or see the following related books:
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