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Intelligent Design, the best explanation of Origins » Theory of evolution » Evolutionists Find Evidence For Convergence

Evolutionists Find Evidence For Convergence

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1 Evolutionists Find Evidence For Convergence on Tue Feb 04, 2014 8:15 pm

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http://darwins-god.blogspot.com.br/2012/11/evolutionists-find-evidence-for.html

The theory of evolution states that the species arose spontaneously, one from another via a pattern of common descent. This means the species should form an evolutionary tree, where species that share a recent common ancestor, such as two frog species, are highly similar, and species that share a distant common ancestor, such as humans and squids, are very different. But the species do not form such an evolutionary tree pattern. In fact this expectation has been violated so many times it is difficult to keep track. These violations are not rare or occasional anomalies, they are the rule. Entire volumes have been written on them. Many examples are the repeated designs found in what, according to evolution, must be very distant species. Such evolutionary convergence is biology’s version of lightning striking twice. To explain this evolutionists must say that random mutations just happened to hit upon the same detailed, intricate design at different times, in different parts of the world, in different ecological niches, and so forth. The idea that the most complex designs we know of would spontaneously arise by themselves is, itself, not scientifically motivated and a real stretch of the imagination. But for the same intricate designs to arise independently by chance is even more of a stretch. That is why evolutionist’s claim this week that they have found evidence for convergent evolution was so intriguing.

Everyone has heard of the kangaroo and its pouch. It is a marsupial—mammals that give birth at a relatively early stage in development, and then carry their young in a pouch. There are a great variety of marsupials that are curiously similar to a cousin placental species. The flying squirrel (a placental) and the flying phalanger (a marsupial) are one such example. Because of their reproductive differences evolutionists must say they are distantly related on the evolutionary tree. Yet they have strikingly similar designs which must have been created independently by random mutations. Every mutation leading to the two different species must, according to evolution, have been random (that is, independent of any need). No, natural selection doesn’t help.



Another example is the human and squid eye designs, which are remarkably similar. Of the myriad vision designs, these two utterly different species share similar designs that must have arisen in completely different environments, on different substrates, to meet different needs. It is, as Darwin often said, utterly inexplicable.

These are but two of a large and growing list of remarkable convergences. Though evolutionists sometimes deny biological convergence, it is a scientific fact. And a paper from this week added yet another example:

In mammals, hearing is dependent on three canonical processing stages: (i) an eardrum collecting sound, (ii) a middle ear impedance converter, and (iii) a cochlear frequency analyzer. Here, we show that some insects, such as rainforest katydids, possess equivalent biophysical mechanisms for auditory processing. Although katydid ears are among the smallest in all organisms, these ears perform the crucial stage of air-to-liquid impedance conversion and signal amplification, with the use of a distinct tympanal lever system. Further along the chain of hearing, spectral sound analysis is achieved through dispersive wave propagation across a fluid substrate, as in the mammalian cochlea. Thus, two phylogenetically remote organisms, katydids and mammals, have evolved a series of convergent solutions to common biophysical problems, despite their reliance on very different morphological substrates.


It is another curious example of biological convergence, so rather than attempt to deny the undeniable, evolutionists now claim it as another confirmation of evolution.

Astonishingly evolutionist Ronald Hoy claims that this new finding provides “evidence for convergent evolution.” That would be quite a discovery. How, according to Hoy, do the amazing similarities in mammal and katydid hearing make for evidence that they are products of so-called convergent evolution?

It makes for a startling headline and once again gives journalists license to proclaim another confirmation of evolution. But down in the details, Hoy’s “evidence” is nothing more than circular reasoning. In a classic example of evolutionary blowback, Hoy reasons that (i) mammals and katydids evolved, (ii) their hearing designs are remarkably similar, so (iii) therefore it is proof of convergent evolution.

Or simply put, evolution is true, so therefore evolution is true.

This is a confirmation not of convergent evolution but of how evolution has corrupted scientific thinking. Fallacious reasoning such as this is, unfortunately, is the rule rather than the exception.

Religion drives science and it matters.

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