Thursday, December 1, 2011

Human Evolution: By Natural or Artificial Selection? Part One

If you’re reading this, I’d be 99.99% sure you’re human. That being the case, you probably are aware that humans evolved from our primate ancestors, most likely the chimpanzees, starting many eons of time ago in deep, darkest, equatorial Africa. From that point of origin, humans colonized the globe, including whatever part of Planet Earth you currently call home. That’s the be-all-and-end-all of the origin, evolution and colonization of and by the human race. Well, I think there are some flies in that ointment, especially the bit about our evolution.

We come in breeds. The proof of that pudding stares you in the face everyday as you observe the racial variety of people around you. I don’t recall anything in Genesis that explains this, so maybe God had nothing to do with this – assuming the existence of a bona-fide supernatural creator God of course in the first place – though I stand to be corrected on the lack of a Biblical explanation by appropriate authorities.

But if the Bible doesn’t explain the origin of the various breeds of humans neither does Darwin’s natural selection, in the same way that natural selection didn’t create, and doesn’t explain our dog breeds. Survival of the fittest didn’t produce the French Poodle – we did that! But who (or what) created our diversity of breeds or races?

To quell the immediate curiosity of the reader, my answer comes down solidly in favour of our evolution by ‘artificial selection’, which detracts not one jot from the Darwinian principles of evolution via natural selection. The difference between the two is that artificial selection is selection deliberately guided by intelligence; natural selection is, well natural, and not by design.

Humanity, mankind, human beings, however you label us, are collectively made up of breeds just like our own domesticated and bioengineered (artificial bred) animals (companion, farm or other) and plants (crops or garden varieties). The key words are ‘domesticated’ and ‘bioengineered’. We’ve been domesticated and bioengineered too, but we didn’t domesticate and bioengineer our own human breeds like we domesticated and bioengineered our domesticated plants and animals. Somebody or something else will take that credit.

Now I’m not really talking here about the so-called scientific phrase now substituted for creationism – ‘intelligent design’. Intelligent design has the philosophical baggage of having a supernatural creator, a God, behind the design. Alas, in the case of the human being, if God designed us from scratch; from the ground up, well He really failed Bioengineering 101. The various aches and pains and ailments we suffer because of bad biological design testify to that!

No, I’m referring here to the sort of artificial selection we humans employ when we breed dogs or cats or cattle or drought-resistant crops or whatever for our particular real (or imagined needs). I’m just turning the tables here a bit in what’s good for the goose is good for the gander. As we do, so has it been done to us! The question again is, done unto us by whom? 

To further quell the immediate curiosity of the reader, the ‘who’ collectively are the mythological gods, who aren’t really mythical, nor are they supernatural, but flesh-and-blood extraterrestrials who happen to have a special interest in, and abilities toward, genetics.

The basic premise, as expounded upon by universal cultural mythologies, is that the gods created humans, creating humans to relieve the gods of, and do the hard work instead, and to also serve the gods – and I don’t just mean by kneeling and prayer and building edifices to them. Translated, in more modern terminology, the flesh-and-blood extraterrestrials, which came upon Planet Earth many hundreds-of-thousands, perhaps millions of years ago, set up shopkeeping. Eventually known, if not loved, as the gods, these ‘gods’ genetically engineered humans from primate stock with again the ultimate goal of making the ‘gods’ life easier and more rewarding. Because of genetic similarities to our modern selves, that initial primate stock more likely as not were the chimpanzees.

One of those ‘more rewarding’ bits; one of the ‘gods’ tricks in their genetic engineering experiment, a design element designed to appeal to the ‘gods’ was to ensure humans were sexually compatible with them, and by Jove, did they ever make use of that engineered compatibility – at least if you take at face value and believe what transpired according to the mythological tales. Not suitable reading for the kiddies!

Now, the initial question is, if the overall intention of the extraterrestrial ‘gods’ is to create slaves to do the housework for the ‘gods’, and to serve the ‘gods’ (sexually or otherwise), and all you have to work with is terrestrial life (minus humanity), what sort of traits do you need to select for in order to get a life form that can build the pyramids and monumental structures that are constructed in order to serve the purpose of worshiping you? Clearly only humans can build a pyramid, so what skills or attributes do we have now that all other terrestrial life forms didn’t have then?

Two particulars stand out. One is that in order to build a pyramid, etc. one needs a free pair (or more) of appendages in order to manipulate stuff. How do you get a free pair of appendages? Well, you have got to go from a quadrupedal stance to a bipedal stance, thus freeing up two appendages (i.e. – arms). From a Darwinian point-of-view, that’s a problem. There’s a cost. Now we’re clearly bipedal. But will a bipedal posture be selected for naturally? Not usually, for again, there’s a price to be paid.

The second particular is that you need some degree of smarts! Translated, to build a pyramid you need a relatively large and complex brain. Many animals might be strong enough to build a pyramid, but they just don’t have a high enough IQ to pull it off. However, again from a Darwinian perspective, a high IQ comes at a high cost. Will high intelligence be selected for naturally?

To be continued...

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