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> Bill Barbour ... writes about the origins of flight and
> Dr Larry Martin, a fossil bird specialist at the
> University of Kansas has reconstructed Archaeopteryx from resin casts of the
> actual fossil bones. He claims that he had little choice in how the bones
> articulate, (or at least in how he articulated them) and says that his
> reconstruction seems adapted for climbing trees, much like a primate. Thus,
> he theorizes, that powered flight evolved from gliding from the tree down
> rather than from running and flapping from the ground up.
In this I tend to agree with Dr. Martin. I do not think that
a ground-level origin of flight is plausible. (The *best* such
scenario I have ever seen is the one suggesting that the proto-
bird used its "wings" as nets to catch insects - and that one
is none too convincing).
All known mammalian flyers and gliders are arboreal to one
degree or another, or at least show signs of arboreal ancestry.
The peace of God be with you.