Science and Culture Today | Page 1237 | Discovering Design in Nature

After reviewing the effects of mutations upon Functional Coding ElemenTs (FCTs), Michael Behe’s recent review article in Quarterly Review of Biology, “Experimental Evolution, Loss-of-Function Mutations and ‘The First Rule of Adaptive Evolution’,” offers some conclusions. In particular, as the title suggests, Behe introduces a rule of thumb he calls the “The First Rule of Adaptive Evolution”: “Break or blunt any functional coded element whose loss would yield a net fitness gain.” In essence, what Behe means is that mutations that cause loss-of-FCT are going to be far more likely and thus far more common than those which gain a functional coding element. In fact, he writes: “the rate of appearance of an adaptive mutation that would arise from the diminishment Read More ›

National Center for Selling Evolution Science Education’ s Program and Policy Director Josh Rosenau has made disturbing arguments in favor of abortion. On his personal blog Thoughts from Kansas, Rosenau, who has been a doctoral candidate in evolutionary biology at the University of Kansas, asserted that children in the womb were nearly indistinguishable from… cancer.
Later in his post, Rosenau defends abortion by asserting:

Is an embryo a discrete human being? I think not. An embryo is dependent on its living host…

An old-fashioned term for the “living host” of an embryo is… mother. Rosneau frames the mother-child relationship charmingly: he compares the relationship between a mother and her unborn child to the relationship between a host and a parasite.

Rosneau:

An embryo is dependent on… a woman whose nutrients it relies upon, whose immune system protects it, whose lungs provide it with oxygen, and whose body carries out every other essential function. If the woman dies, an embryo cannot survive (medical intervention alters this case somewhat, but a reliance on medical life support hardly vitiates questions about the embryo’s discreteness).

Actually, we have entire institutions devoted to children who rely on others to provide support for their vital functions. They’re called hospitals. I work in several of them. Many of the children for whom I provide care (I’m a pediatric neurosurgeon) need artificial feeding, antibiotics to augment their immune systems and protect them from infection, and need respirators to help them breathe. I assure Mr. Rosenau: hospitalized children are quite discrete human beings, tubes and machines notwithstanding. I do not consider their condition of dependence on vital support a basis for denying them the right to life. In fact, their condition of dependence is in my view justification for protecting their lives with increased vigor.

Slate — yes, stet that, Slate — carries an excellent essay opening up the interesting question of whether political and philosophical presuppositions distort what we think of as mainstream science (“Lab Politics: Most scientists in this country are Democrats. That’s a problem“). Author Daniel Sarewitz notes that among scientists, self-identified Republicans make up a dismal 6 percent, while Democrats are 55 percent (the rest are independents and I-don’t-knows). Though Sarewitz doesn’t mention evolution, he ought to have done so. But never mind. While folks on the political right have been strangely slow to pick up on the political resonances of Darwinism, his illustration from the climate debate makes the same point:

Could it be that disagreements over climate change are essentially political — and that science is just carried along for the ride? For 20 years, evidence about global warming has been directly and explicitly linked to a set of policy responses demanding international governance regimes, large-scale social engineering, and the redistribution of wealth. These are the sort of things that most Democrats welcome, and most Republicans hate. No wonder the Republicans are suspicious of the science.

Think about it: The results of climate science, delivered by scientists who are overwhelmingly Democratic, are used over a period of decades to advance a political agenda that happens to align precisely with the ideological preferences of Democrats. Coincidence — or causation?

The media has been buzzing about NASA’s claim that scientists that have discovered “life as we do not know it” (MSNBC)–purportedly finding bacteria that can use arsenic instead of phosphorous in its DNA. David Klinghoffer already blogged about this story here, interviewing astronomer Guillermo Gonzalez (who has conducted research on astrobiology) on the find. The public first became aware of this story last week when NASA announced it would be holding a press conference that would reveal “an astrobiology finding that will impact the search for evidence of extraterrestrial life.” NASA’s announcement inspired a chorus of speculative excitement among materialists and UFO true-believers alike, who stated things like: NASA is holding a press conference on Thursday to make an announcement. Read More ›

Display content from YouTube Click here to display content from YouTube. Learn more in YouTube’s privacy policy. Always display content from YouTube Open video directly

Jerry Coyne has an amusing post on the National Center for Science Education’s outreach effort to Christians. Coyne, in a post titled “NSCE Becomes BioLogos,” laments the rigorous efforts of the NCSE’s Faith Project, which is a major outreach program to Christians and other people of faith.

Coyne quotes the NCSE:

The National Center for Science Education (NCSE) is a not-for-profit, membership organization providing information and resources for schools, parents and concerned citizens working to keep evolution in public school science education. We educate the press and public about the scientific, educational, and legal aspects of the creation and evolution controversy, and supply needed information and advice to defend good science education at local, state, and national levels….The National Center for Science Education is not affiliated with any religious organization or belief. We and our members enthusiastically support the right of every individual to hold, practice, and advocate their beliefs, religious or non-religious. Our members range from devout practitioners of several religions to atheists, with many shades of belief in between. What unites them is a conviction that science and the scientific method, and not any particular religious belief, should determine science curriculum.

Coyne asks, perceptively:

Is origin of life chemistry in hot water? So it seems according to a new paper in the Proceedings of the National Academy of Sciences. The authors address the conundrum of origin of life chemists between the rate of (un-catalyzed) organic reactions and the lack of time available for these reactions to occur. From the article (note: an enzyme is a biological catalyst):

Whereas enzyme reactions ordinarily occur in a matter of milliseconds, the same reactions proceed with half-lives of hundreds, thousands, or millions of years in the absence of a catalyst. Yet life is believed to have taken hold within the first 25% of Earth’s history. How could cellular chemistry and the enzymes that make life possible, have arisen so quickly?” [Internal citations omitted]

Indeed this is one of the problems with origin of life scenarios, particularly those scenarios that presume a metabolism-first world (as opposed to an RNA-first world). The half-life of certain reactions without a catalyst can be millions of years, but studies show that the emergence of early bacteria could be dated as far back as 3.5 billion years (see ENV post on a cold origin of life and Schopf, J. William, “The First Billion Years: When Did Life Emerge?” Elements vol 2:229 (2006) for more on this). This means there was a limited amount of time for fundamental biological reactions to occur. Reaction kinetics can be prohibitive. However, the authors of this paper have a theory to solve the reaction kinetics problem.

Display content from YouTube Click here to display content from YouTube. Learn more in YouTube’s privacy policy. Always display content from YouTube Open video directly