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Re: Big-brained birds evolve faster

... or perhaps bird lineages that evolve faster are more likely to
develop bigger brains? 

Larger brain sizes may be a function of more diverse lineages, where
there is a greater likelihood of one or more species developing larger
brains.

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Dann Pigdon
GIS / Archaeologist              http://geo_cities.com/dannsdinosaurs
Melbourne, Australia             http://heretichides.soffiles.com
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