Evolution

131 quotes found

"According to Goldschmidt, all that evolution by the usual mutations—dubbed "micromutations"—can accomplish is to bring about "diversification strictly within species, usually, if not exclusively, for the sake of adaptation of the species to specific conditions within the area which it is able to occupy." New species, genera, and higher groups arise at once, by cataclysmic saltations—termed macromutations or systematic mutations—which bring about in one step a basic reconstruction of the whole organism. The role of natural selection in this process becomes "reduced to the simple alternative: immediate acceptance or rejection." A new form of life having been thus catapulted into being, the details of its structures and functions are subsequently adjusted by micromutation and selection. It is unnecessary to stress here that this theory virtually rejects evolution as this term is usually understood (to evolve means to unfold or to develop gradually), and that the systematic mutations it postulates have never been observed. It is possible to imagine a mutation so drastic that its product becomes a monster hurling itself beyond the confines of species, genus, family, or class. But in what Goldschmidt has called the "hopeful monster" the harmonious system, which any organism must necessarily possess, must be transformed at once into a radically different, but still sufficiently coherent, system to enable the monster to survive. The assumption that such a prodigy may, however rarely, walk the earth overtaxes one's credulity, even though it may be right that the existence of life in the cosmos is in itself an extremely improbable event."

- Evolution

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"[P]hysical scientists who desire, unselfconsciously, to uplift their fellow humans, endure with difficulty the thought that the destiny of mankind rests supinely in the power of the unbound electron. Mechanistic determinism is abhorred just as whole-heartedly by many a man of letters who sees no logical escape from its tentacles, as it is by “fundamentalist” preachers who see in the triumph of materialism a prospective loss of their own bread and butter. Most dreaded of all mechanistic tenets, apparently, is Darwinian evolution. That monkey has made man in his own image is felt to be a degrading thought. Why? Because such a conclusion is taken to taken to mean that man, once made, continues to be controlled by the same elementary forces which originally produced him. But biological evolution, even if true, entails no such implications. Monkey (or the common ancestor), may have caused man to evolve into his present form ; but man, on the other hand, can now create new types of monkeys at will, by exercising a controlling influence over their breeding habits. And this is the very type of causation idealized by the vitalists. Man, the complex, sets causes in motion which influence the nature of monkey, the simpler animal. Moreover, while the materialistic supposition that monkey originally created man is beyond our present powers of verification, the influence exercised by man over monkey can be observed, any day, in the laboratory. In this argument, at least, we must concede that the vitalists’ variety of causation is more solidly upheld by facts than is the mechanistic type of cause raised by materialists to epic grandeur in the sage of biological evolution. We must admit that while the vitalists begin their theorizing with fictional flights, the materialists conclude their doctrines with an almost equally speculative sublimation of their underlying emotional set. Also, in justice to both, it may be said that the vitalistic account of causation is just as much an accurate observation of physical fact, as is the mechanistic account. Simpler energy units constantly influence more complex units and may, under favourable conditions, control their behavior, while more intricate assemblages of force, by virtue of new attributes derived from their complexity, as constantly compel compliance from cruder types of matter, and do, under our very eyes, completely regulate the simpler energy forms. Physical science must and does include both mechanistic and vitalistic types of causation."

- Evolution

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"But, be that as it may, is this variation, or variations, beneficial to humanity in their environment? According to Lois Gresh and Robert Weinberg, the X-men do have “helpful mutations..." This point is demonstrated numerous times in the adventures of the X-Men, where team members use their mutant powers to help them survive dangerous situations where normal humans would be killed instantly” (Gresh and Weinberg 2002, 135). What Gresh and Weinberg have overlooked, however, is that these “dangerous situations” came after the genetic variation, not before. Most of the battles the X-Men fight are either against other mutants-- such as Magneto and the Brotherhood of Evil Mutants, who have a more violent response to human oppression of mutants-- or against anti-mutant hate groups, such as the Sentinels or Friends of Humanity, whose only goal is to wipe out all mutants. All of these “dangerous situations” come up in response to the X-Men’s genetic variation, meaning that this variation cannot be an adaptive response to an environment. Of course, under the theory of evolution by natural selection, every mutation need not necessarily be useful. However, the premise of the X-Men franchise is that these mutations are the foundation of the next phase of human evolution, so these mutations must provide some sort of selective advantage in order for that to be true. However, these variations seem much more likely to be selected against, since they get the X-Men into so much trouble. Assuming that the X-Men survive long enough to reproduce and care for offspring, very few potential mates are going to be willing to take the genetic risk of mating and producing offspring with them. The comics themselves support this, when the X-Men are ostracized from society as “dangerous.” Thus, the X-Men cannot possibly be the next stage of human evolution because their adaptations are neither advantageous, nor likely to be passed down to future generations. However, we buy into the notion that the X-Men are the logical progression of our species because they conform to our notions of evolution as something that follows a progression from simple-structured and simple-minded to physical and mental complexity. Because the variations that the X-Men exhibit are flashy, complex, and, very often, associated with some mystical higher functioning of the brain (such as Xavier’s telepathy and Magneto’s ability to move metal with his mind), they are embraced as the next phase, regardless of environmental pressures or sexual selection."

- Evolution

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