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From: John Harshman <john.harshman@gmail.com>
Newsgroups: talk.origins
Subject: Re: Tiny feathered dino may have glided
Date: Fri, 25 Oct 2024 15:22:15 -0700
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On 10/25/24 1:56 PM, JTEM wrote:
>   RonO wrote:
> 
>> https://www.science.org/content/article/glide-and-stride-tiny-feathered- dino-flapped-it-ran
>>
>> A sparrow sized raptor had an extrodinary stride length indicating 
>> that it may have glided between steps.  Maybe like a flying fish on land.
> 
> The Cursorial theory on the origins of powered flight in birds
> always made a great deal more sense than the Arboreal.
> 
> Amongst the obvious facts is that birds are so well adapted to
> the ground that flightless birds -- secondarily flightless --
> began evolving relatively quickly!
> 
> Not the only piece of evidence but amongst the more obvious...

That's actually an interesting point. But what are these early, 
secondarily flightless birds? Are you referring to oviraptorosaurs, 
deinonychosaurs, and such? Greg Paul's ideas? What's the evidence that 
they had flying ancestors?