Re: Cost in Aquatic Birds (long)

["James R. Cunningham" <jrccea@bellsouth.net>]

David Marjanovic wrote:

> What exactly is pronation? Rotation in a certain direction?

For an animal in flight, with wings extended -- it is a nosedown rotation of the
wingspar  approximately about its long axis.

> (> If archie were a swimmer, there should probably have been substantial
> > adaptations for increased pronation-supination ability at the shoulder,
>
> Interesting... I don't know of such adaptations in Archie, but I don't know
> the literature well. Anyway, thank you for bringing up an idea for how to
> test at least a part of FUCHSIA. :-)

My intent was just to bring it up.  I'm not interested in testing it, but
thought others might be.  For an example the type of rotation I'm talking about,
look at a sea turtle's front limb rotation during the downstroke, relative to
that of a bird or bat.