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Ornitologia e dintorni


How are birds related? 
This is not just an academic question. 
Every living thing is the end-product of an evolutionary history and
carries the evidence of that descent. 
Until recently there were only two ways to reconstruct this history: 
from the fossil record and from the constitution and distribution of living things. 
Now there is a third: the comparative studies of DNA and its byproducts, which
form the basis of the work of Charles Sibley and his collaborators. 

 
                 SIBLEY's  SEQUENCE
             Based on DNA hybridization comparisons
                   by Charles G. Sibley - Burt L. Monroe, Jr.

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