It is a huge myth that we are evolved or descended from some wolf-like pre-human species that feasted exclusively on flesh. That has NEVER been concluded with ANY scientific evidence. Yes, we're onmivores and have been for eons. Meat is a good source of protein and our bodies REQUIRE small amounts of animal protein to run most efficiently. Still, the reason so many people want and EXPECT meat all the time is based more on status and class than anything else. It's the upper classes that have promoted this idea that it is desirable (or worse, "fashionable") to eat big slabs of meat at every meal. We are a species out-of-control, with our technology and our pollutants, etc., etc., and we know it. Most of our ancestors were "owned" as slaves, serfs, indentured servants, even wives (chattel) of other people, too. Does that make owning people ok today? We've evolved to understand the inter-connections of our world and our responsibilities in it. Current rates of meat production and consumption in the developed world are extremely hazardous to the health of our environment--and our bodies. Yes, this has been proven, you neo-con poo-pooers and nay-sayers, so shut it. Now, the vegans with their "don't eat honey because it came out of the bee's body" b.s. and this notion that an oyster is less vegetable-like than a Venus fly-trap (plant), etc., etc. is all minutiae that I'll let the pedants deal with. If meat is murder, than murder's the number one game on the planet at every level of existence, from whales to microbes, and I'd love to hear the vegan explain that one--especially after a big hit of weed. I try to eat vegetarian and vegan several times a week, but I'm not taking B-12 shots. The human body is SUPPOSED to get animal products in it now and then, whether it's insects or oysters or cheese or whale blubber, I don't care. That's how we're made--or how we've evolved, anyway. It's where we are NOW. We could certainly go about producing our meat a little more sensibly and kindly, and eat much less than we do, but that won't happen until we start putting the pressure on the meat producers and educating our children--both of which we haven't proven ourselves very good at.I suggest you watch one of the following: *Earthlings *Meet your meat *Diet for a new America Earthlings has been posted on YouTube if you want to watch it (WARNING: Very Graphic). Even the slaughter houses that claim to be the most humane, torture the animals. For instance, no animals are simply 'shot in the head.' It's too expensive for the companies. In many slaughter houses, the cheapest way is to hang the animals upside down and slit their throats. This is a slow and painful death for the animals, and most are still alive and conscious when they are sent for further slaughtering. The conditions where most of these animals spend their lives are crowded and dirty. In pig farms, the females are continuously giving birth due to artificial insemination. Lots of pigs are also killed inhumanely, like cows. Some have their throats slit, others are continuously beaten to death. NO companies treat their animals 'nicely.' They are treated as 'products' and are killed in the most cheap and inhumane ways possible. Hope this answers your question. Side note: The livestock that live on animal farms that claim they have a 'peaceful' lifestyle, are all slaughtered inhumanely.