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Re: nice cover painting - Re: NEW BOOK: Dinosaurs of Eastern Iberia

On Wed, Oct 19, 2011 at 6:47 PM, Augusto Haro <augustoharo@gmail.com> wrote:
> Canids commonly trot with open mouths, so other animals making use of
> high cursing velocity and aerobic metabolism, as dinosaurs are
> currently considered, may behave similarly. Overall, that seems to be
> the case in canids when pursuing prey, moment at which oxygen uptake
> may increase. That in addition to panting, which may be common in
> active cursors.

Or, a little closer to home, phylogenetically speaking:

(Granted, most pics of ostriches running show them with mouths closed.)

T. Michael Keesey