Evo-devo v. Darwin.

How Embryonic Development Bears on Evolution
Cornelius Hunter

In order for evolution to have occurred as the orthodox theory describes, the intricate embryonic development stages of species must have evolved. Indeed, the developmental pathways of the species would be crucial in such a process. If we are to believe the evolutionary claim that the species spontaneously arose, then untold embryonic development pathways must have somehow undergone massive change.

But while evolutionists expected the study of such evolution of development to yield great insight into the evolutionary process and history, it has underwhelmed. This shortcoming is well known, as exemplified in a 2015 paper, “The Comet Cometh: Evolving Developmental Systems“:

First, traditional comparative approaches to the evolution of development — whether focused on the morphological or on the molecular/genetic level — are reaching their limits in terms of explanatory power.

Except that this is an overstatement. To say that comparative approaches “are reaching their limits in terms of explanatory power” is to suggest that there was, at one time, some significant level of explanatory power provided. That would be a very optimistic interpretation of the data.

The paper continues:

The more we learn about the evolution of pattern-forming gene networks, or the ontogeny of complex morphological traits, the more it becomes clear that it is less than straightforward to conclude anything about evolutionary origins or dynamics based on such comparisons alone.

“Less than straightforward”? Let’s be clear — a more accurate descriptor would be “impossible.” In fact, the evidence does not reveal an evolutionary history, but rather is supported by the theory. Evolutionary theory does not follow the data, as Huxley prescribed, but rather the data follow the theory.

The paper continues:

On the one hand, homoplasy or convergent evolution abounds at all levels of investigation. One of the most lauded major insights of EvoDevo is that a common toolkit of genes and signaling pathways is reused over and over again to create a large diversity of different body plans, shapes, and organs.

Most lauded major insights? That would be the mother of all euphemisms. Evolutionists are always rationalizing devastating contradictions as teachable moments, and here we have yet another example. To cast the nonsensical finding of a “common toolkit” as a “major insight” is laughable.

This becomes clear as the paper continues:

Because of this, similarities in gene expression patterns or morphological structure often do not necessarily imply common ancestry, since they may as well reflect the frequent reuse of the same regulatory or morphogenetic modules.

Profound similarities “do not necessarily imply common ancestry.” We have now entered a Lewis Carroll world, as Elliott Sober would put it. The whole point of evolution was that such similarities revealed and mandated common descent. But now, we have the exact opposite, as similarities cannot be due to common descent, but must have arisen independently. And this is an “insight”? A fundamental prediction is demolished and evolutionists do not skip a beat. This is not science.

But it gets worse:

On the other hand, developmental system drift allows conserved networks to change considerably in terms of their component genes and regulatory interactions without changing the phenotypic outcomes such systems produce. This means that even functionally conserved regulatory networks can become unrecognizably divergent at the molecular and genetic level, especially across large evolutionary time spans.

We have now reached the height of absurdity. First, profound developmental similarities were found which could not be ascribed to common descent. Now we find that those developmental pathways which can (theoretically) be ascribed to common descent are profoundly different.

When will this bad dream end? The science contradicts the theory. Over. And over. And over. And over.

Some straight talk re: Human origins.

An Uncommonly Clear Discussion of Human Origins
David Klinghoffer | @d_klinghoffer

It’s not often that you hear the problem of human origins and the fossil record stated as plainly and lucidly as biologist Ann Gauger does in a new ID the Future episode. Dr. Gauger is CSC Director of Science Communications, and she chatted with Sarah Chaffee about the new book Theistic Evolution: A Scientific, Philosophical, and Theological Critique. Gauger explains that there’s a gap of about a million years between when Australopithecines seem to depart from the fossil record and when modern humans unambiguously appear – the latter at about 2 million year ago. What do you suppose happened there?

The purported transitional fossils in between are extremely scarce and fragmentary. Perhaps enough to fill a shoebox, as one scientist has estimated, they are what theistic evolutionists point to in demanding that we accept the standard evolutionary story. A helpful discussion – listen to the podcast or download it here.

Yet more on OOL science's RNA world narrative.

About That RNA World Hypothesis
Cornelius Hunter

Given its widespread popularity and acceptance you might not have realized that the so-called RNA World hypothesis suffers from some dramatic problems. At the top of the list is the rather awkward fact that there is no evidence for it. While skeptics have pointed this out for years, we now see evolutionists coming clean on this inconvenient truth as well. To wit, here is how Peter Wills and Charles Carter open their recent BioSystems  paper:

The RNA World is a widely-embraced hypothetical stage of molecular evolution, devoid of protein enzymes, in which all functional catalysts were ribozymes. Only one fact concerning the RNA World can be established by direct observation: if it ever existed, it ended without leaving any unambiguous trace of itself.

Even this is a bit of an understatement. Because without the prior assumption of evolution, which can and has underwritten a wide range of speculation, there is precisely zero reason to believe this wild hypothesis. No organisms have ever been discovered that demonstrate the RNA World hypothesis in action. Nor have scientists ever constructed any such organisms in their laboratories. This is not too surprising because no one has even produced anything remotely close to a detailed design of how such organisms could function.

Wills and Carter also point out negative evidences such as catalysis (RNA enzymes lack the ability to function over a wide range of temperatures) and the “impossible obstacles” to the hypothetical yet necessary transition from the RNA World to something resembling today’s extant cells. As Carter explains:

Such a rise from RNA to cell-based life would have required an out-of-the-blue appearance of an aaRS [aminoacyl-tRNA synthetase]-like protein that worked even better than its adapted RNA counterpart. That extremely unlikely event would have needed to happen not just once but multiple times — once for every amino acid in the existing gene-protein code. It just doesn’t make sense.

Indeed, it just doesn’t make sense. And yet in spite of these obvious problems, the RNA World has been a textbook staple, presented as a plausible and likely example of how early life evolved.