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Re: New bird /pterosaur flight paper in PLoS ONE
Quoting "Simon M. Clabby" <email@example.com>:
> Can I just play devil's advocate for a minute, and probably show how far
> behind with the
> literature I am?
> Let's say large Azhdarchids are too big to fly. Is it possible that when
> younger they can fly
> about, doing aerobatics and so on, but after their mating years are over,
> they keep growing, and
> flight becomes more difficult, until one day they are grounded permanently?
> From this point, then
> enter a terrestrial phase, scavenging from smaller predators kills, before
> either starving or
> falling prey to a large predator.
Substitute the word 'Azhdarchids' with 'dromaeosaurs' and you might be on to
However I suspect that pterosaurs were far too flight-specialised to have been
able to survive
permanently on the ground for any length of time (ie. several years) - unless
there were some
major changes to body form and terrestrial mobility in their later years (such
as loss of all flight
membranes). Such dramatic physical changes tend to occur more frequently in the
than the very old, at least as a general rule.
GIS / Archaeologist http://dannsdinosaurs.dyn-o-saur.com
Melbourne, Australia http://heretichides.soffiles.com