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Do DNA Distances Reveal Avian Phylogeny?

The method of DNA-DNA hybridization has been applied to the relationships of birds, with some surprising results. The method is described and the results analyzed. While the results are quite interesting, there appear to be limits to the resolution of the method, and it seems inadvisable to depend upon this method alone when studying bird relationships. Published in Origins v. 14, n. 2.

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Argentavis Magnificens: World’s Largest Flying Bird

A fossil bird from Argentina is now regarded as the largest known flying bird. Published in Origins v. 7, n. 2.

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