Anatomy
@ Rajesh
Great post, indeed. I just have a comment...
"To imagine that others could relish it is a bit disturbing to me, although perhaps acceptable."
Now, I myself feel exactly like that when I see people eating salad. I just don't say it would be "perhaps acceptable" -- I think it's truly acceptable, even if I can't do it. Just the smell usually turns my stomach. I'm allergic to chlorophyll. OK, just kidding (although some people do fall for that one). But I do have a big problem with leaves, can't stand them. Even if I don't know they are there and eat, I then feel like throwing up. Other parts of vegetables are almost always fine, specially roots and fruit. But I can't pass a day without meat, feels like I haven't eaten real food. That's how I am (and my culture).
@RW
"long digestive tract that efficiently extracts the goodness from nutrient-poor foodstuffs, i.e. veggies"
Well, sort of. Yes, our digestive tracts are longer than a carnivore's. But they are way shorter than the ones from true herbivores! We are in the middle. You know the appendix, that stupid little stump on your intestines? It's also called the caecum, for "blind" as in blind-alley. So, that is very long and complex in herbivorous species, and it is responsible for the digestion of plant matter. The more plant a species eats, the longer the caecum (sometimes, if stretched, it's longer than the animal itself!). Very little is left in us, and other apes. *Because we are not supposed to be eating just plants* Whomever wants too is welcome though -- just don't forget your artificially synthesized supplements. You don't want to know what B-12 deficiency looks like. Oh, and eating fungi (yeast) is cheating, since fungi are much closer to animals than to plants, hehe! ;-)
@ people talking about chewing sideways and flat teeth
Get a clue. By for example getting a copy (won't be cheap, try a library) of late Milton Hildebrand's "Analysis of Vertebrate Structure". If I remember my days as Vertebrate Zoology TA well, there is quite a lot about comparative teeth structure there. Our molars are NOT like the ones from herbivores -- look a horse in the mouth, our teeth are not like that, but like a pig's. Our molars are tuberous (good for succulent stuff like roots and fruit, OK enough for grinding meat when needed), definitely not flat. If your are, you urgently need to see an orthodontist.
Our teeth are NOT those of an pure herbivore, and NOT those of a pure carnivore. Our teeth are pig's teeth, appropriately enough.
This is a damn long post.