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Re: Parrish's neck work ...

The two axes are totally independent.  For example, Quetzalcoatlus has very
limited lateral mobility (due to yaw control constraints in flight), but quite
respectable vertical mobility.

Simon, Robert (RISI) wrote:

>         Seems like a long neck with limited vertical mobility would severly
> limit lateral motion. Not only must these have been prehistoric times, they
> must have been awkward times.
> >  Would there be any evolutionary advantage to having such a long neck, if
> >
> > the
> >  head couldn't be lifted to snack on treetops.  It doens't seem logical
> > that
> >  sauropods would develop as they did, and not be able to lift their heads
> >  above 10 or 12 feet.
> >   >>
> >