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Study: Male Facial Development Evolved To Take Punches
First time accepted submitter Joe_NoOne (48818) writes "A new theory suggests that our male ancestors evolved beefy facial features as a defense against fist fights. The bones most commonly broken in human punch-ups also gained the most strength in early hominin evolution. They are also the bones that show most divergence between males and females. From the article: 'Fossil records show that the australopiths, immediate predecessors of the human genus Homo, had strikingly robust facial structures. For many years, this extra strength was seen as an adaptation to a tough diet including nuts, seeds and grasses. But more recent findings, examining the wear pattern and carbon isotopes in australopith teeth, have cast some doubt on this "feeding hypothesis". "In fact, [the australopith] boisei, the 'nutcracker man', was probably eating fruit," said Prof David Carrier, the new theory's lead author and an evolutionary biologist at the University of Utah. Instead of diet, Prof Carrier and his co-author, physician Dr Michael Morgan, propose that violent competition demanded the development of these facial fortifications: what they call the "protective buttressing hypothesis".'"
The goal of bodybuilding is indeed aesthetics, and they do not hide it. Their goal is not functional -- rather, their goal is the full development of every muscle on the body in a proportional manner.
And that does not mean it's easy, either. People often assume that that degree of muscular development is just "lifting weights" and that is the farthest from the truth. Bodybuilding entails making sure that you pretty much develop every visible muscle group, without any one group looking out of proportion than the other. For instance, my chest and calves are the hardest to build, and it takes me a lot of effort to ensure that they develop in proportion to the rest of my body, my shortcomings notwithstanding.
However, bodybuilders are far from the best examples of fitness simply because their whole bulk/cut regimen isn't healthy, not to mention the overabundance of supplements that they consume. But I cannot tell from your post if you're referring to all bodybuilders (including the professional ones) or to the popular perception of the gym rat bodybuilder.
But there is a part of your argument that I disagree with - while they body builders may not be as strong as they should be, given their muscular density, that is by design. They're still stronger than most people (I mean, if you're squatting over a thousand pounds, imagine crushing something with those legs).
They may have some shortcomings compared to others of a leaner makeup, and that is a function of what they focus on. As a rock climber, I am more agile but my mirror muscles will never get that big; but despite having great lung capacity, my lung capacity will never equal that of my wife's, who's a long distance swimmer. Similarly, despite being strong and flexible, I cannot dream of ever squatting anything over 350 lbs. Because at some level, you hit a very realistic limit that cannot be overcome without additional muscle mass.
Bodybuilders are extremely good at what they do - i.e. push their muscle development to the max. You cannot judge a fish by how high it can fly.