Natural Selection Quotes

There was something built into the human brain by natural selection which was once useful, and which now manifests itself as religion.

Sexual conflict occurs when one mating partner has an opportunity to increase its fitness at a cost to the other partner. On a genetic level, most sexual conflicts are interlocus conflicts that mainly concern the outcome of male-female interactions about the mating rate, fertility efficiency, relative parental effort, remating behavior, and female reproductive rate. In sexually antagonistic evolution, a trait that affords advantage to one sex is disadvantageous to the other. An example is the sexual arms race that evolves when resistance in one sex drives the evolution of coercive traits in the other sex. Without the restrictions of natural selection, this process may lead to a runaway amplification of male and female traits. The coevolutionary arms races between adaptations in one sex and counteradaptations in the other sex can be made visible by experimentally arresting evolution in one sex.

Nothing at first can appear more difficult to believe than that the more complex organs and instincts should have been perfected, not by means superior to, though analogous with, human reason, but by the accumulation of innumerable slight variations, each good for the individual possessor. Nevertheless, this difficulty, though appearing to our imagination insuperably great, cannot be considered real if we admit the following propositions, namely,— that gradations in the perfection of any organ or instinct, which we may consider, either do now exist or could have existed, each good of its kind,— that all organs and instincts are, in ever so slight a degree, variable,— and, lastly, that there is a struggle for existence leading to the preservation of each profitable deviation of structure or instinct. The truth of these propositions cannot, I think, be disputed.

The very comprehensibility of the world points to an intelligence behind the world. Indeed, science would be impossible if our intelligence were not adapted to the intelligibility of the world. The match between our intelligence and the intelligibility of the world is no accident. Nor can it properly be attributed to natural selection, which places a premium on survival and reproduction and has no stake in truth or conscious thought. Indeed, meat-puppet robots are just fine as the output of a Darwinian evolutionary process.

Natural selection favors the forces of psychological denial. The individual benefits as an individual from his ability to deny the truth even though society as a whole, of which he is a part, suffers. Education can counteract the natural tendency to do the wrong thing, but the inexorable succession of generations requires that the basis for this knowledge be constantly refreshed.

Homosexuality is nature’s way of keeping the population in check.

It is not always the magnitude of the differences observed between species that must determine specific distinctions, but the constant preservation of those differences in reproduction.

Nature might be a great experimentalist, but one who would never pass muster with an ethics review board – contravening the Helsinki Declaration and every norm of moral decency, left, right, and center.

In the distant future I see open fields for far more important researches. Psychology will be based on a new foundation, that of the necessary acquirement of each mental power and capacity by gradation. Light will be thrown on the origin of man and his history.

Natural selection eliminates and maybe maintains, but it doesn't create... Neo-Darwinists say that new species emerge when mutations occur and modify an organism. I was taught over and over again that the accumulation of random mutations led to evolutionary change [which] led to new species. I believed it until I looked for evidence.

Evolution is the law of policies: Darwin said it, Socrates endorsed it, Cuvier proved it and established it for all time in his paper on 'The Survival of the Fittest.' These are illustrious names, this is a mighty doctrine: nothing can ever remove it from its firm base, nothing dissolve it, but evolution.

The tendency to variation in living beings, which all admitted as a matter of fact; the selective influence of conditions, which no one could deny to be a matter of fact, when his attention was drawn to the evidence; and the occurrence of great geological changes which also was matter of fact; could be used as the only necessary postulates of a theory of the evolution of plants and animals which, even if not at once, competent to explain all the known facts of biological science, could not be shown to be inconsistent with any.

Animals have genes for altruism, and those genes have been selected in the evolution of many creatures because of the advantage they confer for the continuing survival of the species.

The arms race between [predators] and [prey] is asymmetric, in which success on either side is felt as failure by the other side, but the nature of the success and failure on the two sides is very different. The two sides are 'trying' to do very different things. [Predators] are trying to eat [prey]. [Prey] are not trying to eat [predators], they are trying to avoid being eaten by [predators].From an evolutionary point of view asymmetric arms races are more [likely] to generate highly complex weapons systems.

...and specimens like this confirmed there had been some kind of divine rule in the universe because no natural selection process was up to the task of creating something like him. This was some god’s, somewhere’s, handiwork.