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Re: Pro(to)avis

On Fri, 16 Sep 2005 10:50:07 -0500 Tim Williams
<twilliams_alpha@hotmail.com> writes:
> One of the encouraging trends in recent years 
> is that, 
> when it comes to the origin of avian flight, we have steered away 
> from the 
> traditional 'trees-down' versus 'ground-up' dichotomy.  Rather, the 
> first 
> birds (and their immediate forbears, and their sister taxa) may have 
> divide 
> dtheir time between the ground and the trees (or other elevated 
> substrates,

Perhaps the new view should instead be considered a third hypothesis,
rather than being considered a replacement that falsified the earlier two