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| | The Beak of the Finch: A Story of Evolution in Our Time |
 | | The Grants have documented some 13 species of "Darwin's finches," including one that is flightless; one that cohabits with marine iguanas; one, the vampire finch, that lives on blood; one that is entirely vegetarian; and one, the cactus finch, that makes tools with its beak. |
 | | The Grants caught and banded thousands of finches and traced their elaborate lineage, enabling them to document the changes that individual species make, primarily to their beaks, in reaction to the environment. |
 | | (During prolonged drought, for instance, beaks may become longer and sharper, to reach the tiniest of seeds.) Even more fascinating, the Grants have documented changes in DNA among their birds, suggesting a refutation of creationism, if one were needed, and leading Weiner to declare that "Darwin did not know the strength of his own theory. |
| www.biorationalinstitute.com /shownews.php?nid=234 (280 words) |
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