One of the most common arguments advanced by advocates of vegetarianism,
and by some other commentators on health, is that humans evolved as
vegetarian or mostly-vegetarians.  The most frequently forwarded argument
to advance this position is that human tooth and jaw structrure are clearly
those of herbivores, with flat molars, excellent sideways chewing motion,
and with a clear lack of sharp teeth for killing prey.

I most recently heard a snippet of this line of thinking on a popular news
show here in America called "Nightline" in which a medical doctor and
health writer advanced this view.

I wonder if anyone among our membership would like to comment on this line
of reasoning?