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Are the Galapagos finch beaks evidence of Darwinian evolution?

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I have a key that will unlock a puzzling mystery
I have a key that will unlock a puzzling mystery

Jonathan Wells has an article about it at Evolution News.

It says:

When Charles Darwin visited the Galápagos Islands in 1835, he collected specimens of the local wildlife. These included some finches that he threw into bags, many of them mislabeled. Although the Galápagos finches had little impact on Darwin’s thinking (he doesn’t even mention them in The Origin of Species), biologists who studied them a century later called them “Darwin’s finches” and invented the myth that Darwin had correlated differences in the finches’ beaks with different food sources (he hadn’t). According to the myth, Darwin was inspired by the finches to formulate his theory of evolution, thoughaccording to historian of science Frank Sulloway “nothing could be further from the truth.”

In the 1970s, biologists studied a population of medium ground finches on one of the islands in great detail. When a severe drought left only large, hard-to-crack seeds, 85 percent of the birds perished. The survivors had beaks that were about 5 percent larger than the average beak size in the original population. The biologists estimated that if similar droughts occurred once every ten years, the population could become a new species in only 200 years. In a 1999 booklet defending evolution, the U.S. National Academy of Sciences called the finches “a particularly compelling example” of the origin of species.

But after the drought, birds with smaller beaks flourished again, and the average beak size of the population returned to normal. No net evolution had occurred. No matter; Darwin’s finches became an icon of evolution that is still featured in most biology textbooks.

In the 1980s, a population of large ground finches, with larger beaks than the medium ground finches, migrated to the island. When a drought in 2004-2005 again reduced the food supply, the medium and large ground finch populations both declined. But since even the largest beaks among the medium ground finches were no match for the beaks of the large ground finches, the latter pretty much monopolized the larger seeds and the former had to make do with smaller seeds. This time, the medium ground finches that survived the drought had beaks that were smaller than the average size in the original population. Biologists studying the finches argued that birds with smaller beaks were better able to eat the tiny seeds that were left after the large ground finches ate the big ones, and they concluded that this was again an example of “evolutionary change.”

[…]Wait a minute. Average beak size increased slightly during one drought, only to return to normal after the rains return. Then average beak size decreased slightly during another drought. A region of DNA is correlated with beak size. And somehow that tells us how finches evolved in the first place?

There is an important distinction to make between micro-evolution and macro-evolution. Changes within a type is micro-evolution. Evolving a new organ type or body plan is macro-evolution. There is plenty of evidence for micro-evolution, but no evidence for macro-evolution.

What needs to be proven by the Darwinists is that the same process that results in different average beak size in a population of finches after a drought can create the finches in the first place. I think that Darwinists are credulous – they believe what they want to believe because they want to believe it, even if the evidence is incredibly weak. Darwinists must demonstrate that heritable variations can result in the generation of new organ types and body plans. Changes in average beak size is not interesting. What is needed is to show how the beaks, much less the wings, evolved in the first place.

Icons of Evolution

Jonathan has actually written about a number of  misleading things that you may mind in Biology textbooks.

Here are the sections in his book “Icons of Evolution“:

  • The Miller-Urey Experiment
  • Darwin’s Tree of Life
  • Homology in Vertebrate Limbs
  • Haeckel’s Embroys
  • Archaeopteryx–The Missing Link
  • Peppered Moths
  • Darwin’s Finches
  • Four-Winged Fruit Flies
  • Fossil Horses and Directed Evolution
  • From Ape to Human: The Ultimate Icon

Dr. Wells holds a Ph.D in Molecular and Cell Biology from the University of California at Berkeley.

Polemics

MIT physicist Alan Lightman on fine-tuning and the multiverse

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Christianity and the progress of science
Christianity and the progress of science

Here’s the article from Harper’s magazine.

The MIT physicist says that the fine-tuning is real, and is best explained by positing the existence of an infinite number of universes that are not fine-tuned – the so-called multiverse.

Excerpt:

While challenging the Platonic dream of theoretical physicists, the multiverse idea does explain one aspect of our universe that has unsettled some scientists for years: according to various calculations, if the values of some of the fundamental parameters of our universe were a little larger or a little smaller, life could not have arisen. For example, if the nuclear force were a few percentage points stronger than it actually is, then all the hydrogen atoms in the infant universe would have fused with other hydrogen atoms to make helium, and there would be no hydrogen left. No hydrogen means no water. Although we are far from certain about what conditions are necessary for life, most biologists believe that water is necessary. On the other hand, if the nuclear force were substantially weaker than what it actually is, then the complex atoms needed for biology could not hold together. As another example, if the relationship between the strengths of the gravitational force and the electromagnetic force were not close to what it is, then the cosmos would not harbor any stars that explode and spew out life-supporting chemical elements into space or any other stars that form planets. Both kinds of stars are required for the emergence of life. The strengths of the basic forces and certain other fundamental parameters in our universe appear to be “fine-tuned” to allow the existence of life. The recognition of this fine-­tuning led British physicist Brandon Carter to articulate what he called the anthropic principle, which states that the universe must have the parameters it does because we are here to observe it. Actually, the word anthropic, from the Greek for “man,” is a misnomer: if these fundamental parameters were much different from what they are, it is not only human beings who would not exist. No life of any kind would exist.

If such conclusions are correct, the great question, of course, is why these fundamental parameters happen to lie within the range needed for life. Does the universe care about life? Intelligent design is one answer. Indeed, a fair number of theologians, philosophers, and even some scientists have used fine-tuning and the anthropic principle as evidence of the existence of God. For example, at the 2011 Christian Scholars’ Conference at Pepperdine University, Francis Collins, a leading geneticist and director of the National Institutes of Health, said, “To get our universe, with all of its potential for complexities or any kind of potential for any kind of life-form, everything has to be precisely defined on this knife edge of improbability…. [Y]ou have to see the hands of a creator who set the parameters to be just so because the creator was interested in something a little more complicated than random particles.”

Intelligent design, however, is an answer to fine-tuning that does not appeal to most scientists. The multiverse offers another explanation. If there are countless different universes with different properties—for example, some with nuclear forces much stronger than in our universe and some with nuclear forces much weaker—then some of those universes will allow the emergence of life and some will not. Some of those universes will be dead, lifeless hulks of matter and energy, and others will permit the emergence of cells, plants and animals, minds. From the huge range of possible universes predicted by the theories, the fraction of universes with life is undoubtedly small. But that doesn’t matter. We live in one of the universes that permits life because otherwise we wouldn’t be here to ask the question.

I thought I was going to have to go outside this article to refute the multiverse, but Lightman is honest enough to refute it himself:

The… conjecture that there are many other worlds… [T]here is no way they can prove this conjecture. That same uncertainty disturbs many physicists who are adjusting to the idea of the multiverse. Not only must we accept that basic properties of our universe are accidental and uncalculable. In addition, we must believe in the existence of many other universes. But we have no conceivable way of observing these other universes and cannot prove their existence. Thus, to explain what we see in the world and in our mental deductions, we must believe in what we cannot prove.

Sound familiar? Theologians are accustomed to taking some beliefs on faith. Scientists are not. All we can do is hope that the same theories that predict the multiverse also produce many other predictions that we can test here in our own universe. But the other universes themselves will almost certainly remain a conjecture.

The multiverse is not pure nonsense, it is theoretically possible. The problem is that the multiverse generator itself would require fine-tuning, so the multiverse doesn’t get rid of the problem. And, as Lightman indicates, we have no independent experimental evidence for the existence of the multiverse in any case. Atheists just have to take it on faith, and hope that their speculations will be proved right. Meanwhile, the fine-tuning is just as easily explained by postulating God, and we have independent evidence for God’s existence, like the the origin of biological information, the sudden appearance of animal body plans, the argument from consciousness, and so on. Even if the naturalists could explain the fine-tuning, they would still have a lot of explaining to do. Theism (intelligent causation) is the simplest explanation for all of the things we learn from the progress of science.

We need to be frank about atheists and their objections to the progress of science. Within the last 100 years, we have discovered that the physical universe came into being out of nothing 15 billion years ago, and we have discovered that this one universe is fine-tuned for intelligent life. I don’t think it’s like that the last 100 years of scientific progress on the origins question are going to be overturned so that science once again affirms what atheists believe about the universe. Things are going the wrong way for atheists – at least with respect to science.

See it in action

To see these arguments examined in a debate with a famous atheist, simply watch the debate between William Lane Craig and Christopher Hitchens, and judge which debater is willing to form his beliefs on scientific progress, and which debater is forming his beliefs against the science we have today, and hoping that the good science we have today based on experiments will be overturned by speculative theories at some point in the future. When you watch that debate, it becomes very clear that Christian theists are interested in conforming their beliefs to science, and atheists are very interested in speculating against what science has shown in order to maintain their current pre-scientific view. That’s not what rational people ought to do when confronted with evidence.

Positive arguments for Christian theism

Polemics

Was Hitler a Christian? Is Nazism similar to Christianity?

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A conflict of worldviews
A conflict of worldviews

One of the strangest things I have heard from atheists is the assertion that Christianity is somehow connected to the fascism, such as the fascism that existed under Adolf Hitler. Two posts by Jewish author Jonah Goldberg from National Review supply us with the facts to set the record straight.

Let’s start with the first post.

Here are some of the points:

1) Hitler wanted Christianity removed from the public square

Like the engineers of that proverbial railway bridge, the Nazis worked relentlessly to replace the nuts and bolts of traditional Christianity with a new political religion. The shrewdest way to accomplish this was to co-opt Christianity via the Gleichschaltung while at the same time shrinking traditional religion’s role in civil society.

2) Hitler banned the giving of donations to churches

Hitler banned religious charity, crippling the churches’ role as a counterweight to the state. Clergy were put on government salary, hence subjected to state authority. “The parsons will be made to dig their own graves,” Hitler cackled. “They will betray their God to us. They will betray anything for the sake of their miserable little jobs and incomes.”

3) Hitler replaced Christian celebrations with celebrations of the state

Following the Jacobin example, the Nazis replaced the traditional Christian calendar. The new year began on January 30 with the Day of the Seizure of Power. Each November the streets of central Munich were dedicated to a Nazi Passion play depicting Hitler’s Beer Hall Putsch. The martyrdom of Horst Wessel and his “old fighters” replaced Jesus and the apostles. Plays and official histories were rewritten to glorify pagan Aryans bravely fighting against Christianizing foreign armies. Anticipating some feminist pseudo history, witches became martyrs to the bloodthirsty oppression of Christianity.

4) Hitler favored the complete elimination of Christianity

When some Protestant bishops visited the Fuhrer to register complaints, Hitler’s rage got the better of him. “Christianity will disappear from Germany just as it has done in Russia . . . The Germanrace has existed without Christianity for thousands of years . . . and will continue after Christianity has disappeared . . . We must get used to the teachings of blood and race.”

5) Hitler favored the removal of mandatory prayers in schools

In 1935 mandatory prayer in school was abolished…

6) Hitler favored the banning of Christmas carols and nativity plays

…and in 1938 carols and Nativity plays were banned entirely.

7) Hitler abolished religious instruction for children

By 1941 religious instruction for children fourteen years and up had been abolished altogether….

And now the second post.

8) Hitler opposed the ideas of universal truth and objective moral absolutes

…Just as the Nazi attack on Christianity was part of a larger war on the idea of universal truth, whole postmodern cosmologies have been created to prove that traditional religious morality is a scam, that there are no fixed truths or “natural” categories, and that all knowledge is socially constructed.

Practically everything this man believed was 100% anti-Christian. But he fits in fine on the secular left.

Conclusion

Adolf Hitler was a man influenced by two big ideas: evolution and socialism. His party was the national SOCIALIST party. He favored a strong role for the state in interfering with the free market. He was in favor of regulating the family so that the state could have a bigger influence on children. And he favored the idea of survival of the fittest. His ideas are 100% incompatible with Christianity and with capitalism as well. Christians value individual rights and freedoms, small government and the autonomy of the family against the state. The commandments about not coveting and not stealing are incompatible with redistribution of wealth from those who produce to those who “need”. The differences are clear and significant. The Bible favors voluntary charity by individuals and churches. It does not favor redistribution of wealth by a secular government to equalize life outcomes regardless of personal responsibility.

Ignorant atheists and their myths

In a recent debate between Matt Dillahunty and David Robertson, Dillahunty made the claim that Hitler was a Christian, because in a campaign speech, he told a Catholic audience that secular schools were bad, and religious schools were good. Dillahunty thought that this meant that Hitler was a Christian. Robertson asked him when those words were spoken, and whether they formed the basis of any POLICY after Hitler was elected. Dillahunty didn’t know, because he just cited the quotation without knowing anything about the context, or about the historical period. Robertson informed him that the words were spoken in a campaign speech, prior to Hitler’s rise to power, and that nothing in Hitler’s policies ever took the words seriously after he came to power. It was the equivalent of Obama claiming to support natural marriage, then legalizing same-sex marriage once elected. He lied in order to be elected. This kind of ignorance is very prominent in the atheist (“secular humanist”) community, which survives on mythology which is never subjected to rational inquiry. Here’s another good example of this ignorance.

Incidentally, Dillahunty later said, in the same debate no less, that he “didn’t know” if the Holocaust was morally wrong. Right – because on atheism right and wrong are meaningless concepts, rationally speaking. They are reduced to personal preferences only, where each opinion is as valid as the opposite opinion, since there is no objective standard by which to judge different opinions. That’s why atheists can’t make moral judgements about anything, they just have preferences, like their preference for certain foods and certain clothes. Very important to realize this when talking to atheists, because they use moral language to describe their personal feelings and opinions.

Whenever I hear atheists speculating about whether Hitler was a Christian, I immediately know that they have not investigated anything very carefully, and are merely being insulting. It’s not worth having a conversation with people who are stupid AND insulting.