Why do you name this thread "Dasa"?
Seems me and Dasa have at least two things in common,(but even on the finer points of these we disadree), which are vgetarianism and hinduism .
That said I would say something like this : When the humans branched off from the other mammals (they weren't called "humans" then), the Great Spirit chose to make a certain species more intelligent so it could become self-concious , hence us today. We have inheritted many of the characteristics and basic building blocks as the animals that we evolved from. (There are two "we's" here. There is the "we" that is the "breath of life" that got "breathed" into our species, and there is the "we" that is the material backrgound that we came from,ie. our physical animal ancestors, a very scizophrenic idea,I know).
The limbic system of the brain, onto which the rest of the brain is grown, seems pretty similar to that of animals, and I bet it could be proved through scientific experiments that humans have the same "fight or flight" response, for example, as animals do.
I would say that you can choose to be a predator, if that's what you want, but truth be told, there have been a great many thousand human years spent on this planet acting totally different from predators. The predator instinct may still be in the person ,(some worse than others), but we have been given a choice. A silent choice. Silent, because we answer through our actions.
I would bet most people have had a "mixed" life. That is the nature of the human lives that are put before us.
I would look to buddhism from here, or myself as well
, and say that to honestly alleviate more suffering in the world we could become vegetarian.
Now if I gave that advice to a murderer I dont think it would really do much, because the karma incurred by killing humans is even worse than that of killing animals.
So I, unlike Dasa, would not advocate vegetarianism the way he does. I dont think any less of anyone for eating meat. Things like that are just not the sort of things that make me passionate.