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Evolution of Birds - NY Times

An interesting article appears in today's New YOrk Times, Tuesday, 30
September 1997 page F3

"March of Glaciers Challenged as Engine of Bird Evolution"
DNA Casts doubt on long-held view on when species split.

In brief, it is about the work of Klicka nd Zink who examined
mitochondrial DNA sequences which apparently contradict the existing
paradigms about bird species splits which heretofore have been
attributed to physical separations as a result of recent ice ages.

Larry Dunn? Where are you when we need you!

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