Haha these militant veggies are pretty funny. It's natural and healthy for us to eat meat, the canine teeth in my mouth prove it.
Rape is also natural. Doesn't prove anything.
While rape does happen in the natural world (humans/apes/dolphins etc), we have not evolved to exhibit traits designed to facilitate rape specifically. However we have developed traits to specifically eat and digest meat, such as our teeth. Therefore I don't think it's a fair comparison.
Just wanted to point out that misconception.
OK, I've done some reading and it seems that yes, some mammals do have canine teeth so that argument is not as valid as I first thought. However, some of these mammals may have evolved from recent carnivores, whereas we probably evolved from recent herbivores, such as Australopithecus. So it could be a case that either these mammals have not lost the canines yet, or they use them for another function, such as fighting or tusks for display.
Our digestive system as a whole has most certainly evolved to be omnivorous, not vegetarian. The human digestive tract is shorter than that of herbivores, and we have lost the function of the appendix to digest cellulose.
Our ancestor Australopithecus had a big large intestine, and large flat teeth to munch and digest vegetation. Later, this species moved to the plains and began to eat meat, many scientist believe this was where our anatomy began to evolve to process meat more effectively. Meat is a more concentrated form of energy, our ancestors would gain energy more efficiently by spending an hour eating meat rather than 5 hours eating berries.
There is also evidence that, more recently in history (1.8m years), our ancestors discovered how to cook meat, which is easier still to digest.
Therefore, due to natural selection, our guts got smaller and we saved energy in digestion, enabling us to be more successful in survival.
There is a lot of evidence that the introduction to meat eating enabled our ancestors to evolve bigger brains, and therefore able to spend less time foraging and more time to develop social structures. This would have progressed the species' intelligence.
Many scientists believe that it is no coincidence that Humans are the most intelligent species, and also the only ones to cook their food.
C'mon you guys. This topic is serious. Stop turning it into as religion by suggesting that something evolved.
OK you bloody god-botherer, so now Evolution Theory is a religion, as well as Atheism... Please leave your ideas about the definition of religion out of unrelated threads, you're free to spout that nonsense in threads about religion.
When are you jokers going to wake up and see that evolution as it stands now is one of two things. It is either religion, or it is sci-fi. Why? Because the amount of evolution that has been proven to exist is relatively small.
There is NO proven evolution process that takes inanimate material to life. In fact, the theory for it isn't complete. The evolution that has been scientifically proven has so many holes in it in this way, that we don't even have a complete working "scenario" whereby evolution could become life. Lot's of ideas. Some reasonable theories. But no start to finish scenario where all the parts have been proven. Not really even close. Not even complete start to finish theory.
However, if we had a working scenario, then we still would have to prove that it was the one that happened. Probably by the time somebody DOES come forward with a complete, working flow of evolution, there will be several such working flows, all of them diametrically opposed to each other, as to how evolution could have happened - gone from inanimate to life. The one that is the truth (if somebody even has the right one) will still need to be proven that it is the one that really did happen. We might totally need a time viewer for that.
The point is, those who believe that evolution is truth based on the evidence so far, hail it in a form that at least approaches religion (certainly isn't philosophy). The rest of us call it science fiction. Wake up.