Paul Ryan’s Unsuspected Latent Darwinism

Paul Ryan, in a little-noticed interview, said the other day—talking about abortion—that rape is simply another “method of conception.” This is very much in line with Todd Akin’s “legitimate rape” remark, although it contradicts Akin’s point—which was, somehow, that the reproductive system of a woman being raped (really raped, not…

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Stressed out men prefer larger women

According to this article at Scientific American, stressed out men prefer larger women.

The stressed out guys preferred a larger body size than their relaxed counterparts – but that was not all. “Men experiencing stress not only perceive a heavier female body size as maximally attractive, but also more positively perceive heavier female body sizes and have a wider range of body sizes considered physically attractive,” explain the authors.
The authors offer an evolutionary explanation. These sorts of explanations are always interesting, but whether they are legit or merely just-so-stories remains to be seen.

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Darwin’s unifying idea applied to cultural evolution.

In this video, Daniel Dennett and Richard Dawkins discuss Darwin's dangerous idea May 9, 2012 at Oxford. Then the conversation turns to memes and cultural evolution. Language appears to be the key, according to Dennett. "Words themselves have replicative norms." Check out Dennett's neologism at the 12 minute mark: "Thinko," which is a mental version (an incorrect sub-routine) of a "typo." Dennett gives an update on the "Clergy Project" (in-the-closet clergy) at the 31 minute mark. As Dennett explains, there are actually two distinct projects in the Clergy Project. The first project involves detailed interview of active clergy. The second project consists of 200 members (50 of them are active clergy), with a waiting list of 60. It functions as a support group.

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But do they even know what evolution is?

15 Miss USA contestants demonstrate that they don't know enough to know that they don't know enough. In other words, these beautiful contestants are beautifully demonstrating the Dunning-Kruger cognitive effect: The proper answer from each of these contestants should have been "I can't answer that question, because I don't understand the scientific theory of evolution. Maybe I should go read a few good books, on evolution. Then I'll let you know whether I am competent to answer that question." To answer like this, though, is not the American way. When you are prepared with make-up and the cameras come on, you tend to wing it in such a way to please the majority of your audience. This is what beauty contestants and politicians have in common.

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Modern evolution of human animals

Do human animals continue to evolve? The evidence is clear that we do, for instance in the case of that small subset of human adults who drink milk, according to this article in Discover Magazine:

Assertion: Because modern humans are a young species, there has not been enough time for major differences to emerge between populations. This is false. 5 to 10 thousand years ago a set of strangely mutated humans arose. They continued to be able to digest lactose sugar as adults, in contravention of the mammalian norm. In fact, humans are the only mammals where many adults continue to be able to consume milk sugar as adults. The rapidity of this shift has been incredible. 5,000 years ago almost everyone in Scandinavia was lactose intolerant. Today, very few are. The area of the European genome responsible for this shift is strikingly homogeneous, as a giant DNA fragment “swept” through populations in a few dozen generations. The literature on recent human evolution is still evolving, so to speak. But it is clear that during the Holocene, the last 10,000 years, our species has been subject to a wide array of selective forces. Lactose tolerance, malaria tolerance, differences in color, hair form, and size, seem to be due to recent adaptations. And because of different selection pressures human populations will evolve, change, and diversify. Our African ancestors left 50 to 100 thousand years ago. If 10,000 years was enough time for a great deal of evolution, then the “Out of Africa” event was long enough ago to result in genetic diversification, which we see around us.

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