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Birth of New Species Witnessed by Scientists
from Wired
On one of the Galapagos islands whose finches shaped the theories of a young Charles Darwin, biologists have witnessed that elusive moment when a single species splits in two.
In many ways, the split followed predictable patterns, requiring a hybrid newcomer who'd already taken baby steps down a new evolutionary path. But playing an unexpected part was chance, and the newcomer singing his own special song.
This miniature evolutionary saga is described in a paper published Monday in the Proceedings of the National Academy of Sciences. It's authored by Peter and Rosemary Grant, a husband-and-wife team who have spent much of the last 36 years studying a group of bird species known collectively as Darwin's finches.
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