Humans have hunted animals for food for as long as there have been humans, at least several hundreds of thousands of years. Is it any surprise then, that there remain atavistic instincts to hunt? I don't think so. In fact many scientists have suggested that the fat and protein of animal meals was necessary for development of large brains with strategic skills of memory, logic and foresight.

As a hunter from the age of twelve, I can say that regarding firearms, and considering the stalk which comes with experience, killing the animal is, with firearms, the easy part. Butchering a large animal in the field is hard work, and requires patience, skill, and knowledge, along with sharp knives. This has been true pre-firearms for close to a million years.

Let's not forget where we came from, nor how we got here.