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Re: erect posture and its implications

Larry Dunn wrote:
> ---Human <100533.1710@compuserve.com> wrote:
> > I suspect that a higher metabolism is advantageous in that it permits 
> > migration, SNIP
> How does this follow?  The only migrating terrestrial animals I can
> think of (off the top of my head) are herbivores.  Are there
> terrestrial migrators that are insectivores?  SNIP

While  it may be stretching "terrestrial" to its very limits, modern
birds like swallows or robins (not ducks?) are migrating insectivores.
Do they, in fact, fit the "high metabolism" model?

Given the purported theropod-bird link, some intermediary form of "bird"
might possibly fit the proposed model.

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