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Re: THEROPOD-BIRD CONVERGENCE
In a message dated 6/23/00 7:14:58 AM EST, darren.naish@port.ac.uk writes:
<< Looking at this impartially, they are flatly contradicting themselves. >>
Darren, as usual, is quite correct. Convergence is an increase in similarity
between two kinds of organisms that results from adaptation to a similar
lifestyle. What the ornithologists are calling "convergence" between
coelurosaurs and birds is similarity that is due neither to similar lifestyle
(birds and coelurosaurs surely had quite different lifetyles) nor to common
ancestry but to >chance< alone. That is why I've (repeatedly) described their
hypothesis as a "miracle."