Re: erect posture and its implications

["D.I.G." <dinosaur@dinosaur.org>]

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.

ES
-- 
AOL IM Pager - DinoEditor
ichat PAGER - dinogazette

When you think of dinosaurs, think of DIG!
The Dinosaur Interplanetary Gazette - 245 Million Years of News at
Dinosaur Central
http://www.dinosaur.org
Recommended by The National Education Association,Encyclopedia
Britannica Internet Guide, Yahoo Editor's Choice, Member of The Paleo
Ring

Teefr - An extraordinary tale of adventure by Edward Summer 
http://www.dinosaur.org/teefr.html
Book Three of the Teddy Quartet, Member of The Author Ring.

Laser Publishing Group, Planetarium Station, Box 502-DIG, NY, NY
10024-0502