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In a message dated 95-11-30 23:24:51 EST, ornstn@inforamp.net (Ronald
Orenstein) writes:

>Besides we have no evidence that secondarily flightless birds resemble
>either morphologically or ecologically the non-flying ancestors of the first
>flying birds; as I pointed out earlier secondary flightlessness appears to
>involve the retention of infantile characteristics.

Indeed, they almost certainly _do not_. Just like the secondarily
"flightless" (for want of a better term) _Deinonychus_ probably didn't much
resemble the ancestors of its common ancestor with _Archaeopteryx_.