Another wild and wacky method of reproduction that cannot possibly be explained by Darwinian evolution
Today, trying to pick up something about insect evolution, I came upon an enjoyable presentation about the arthropods and related animals of the Cambrian period at the Understanding Evolution website. There I learned about the onychophorans. The Onychophora are a class (or perhaps a phylum) of land-dwelling invertebrates, sometimes called velvet worms for their velvety skin. They range in size from .6 inch to six inches, and live in temperate and tropical forests, where they eat insects. Here is a picture of a couple of species.
Now get this:
In one South African onychophoran, males stick packets of sperm on the female’s body (apparently anywhere—leg, back, whatever!). Her body senses the sperm packet and dissolves the skin beneath the packet, allowing the sperm to enter her circulatory system and eventually reach her eggs.You know what I’m going to say next, because I’ve said the same before. In order for this method of reproduction to have come into being by Darwinian evolution, a single male onychophoran had to develop, by chance random mutations, a new instinct and behavior by which it stuck its sperm packets onto a female’s body. At the same time, there had to have been hatched, in the same generation and in the same neighborhood as this mutating male, a female onychophoran which had developed, by simultaneous chance random mutations, an entire suite of internal organic faculties by which (1) her body sensed the presence of the sperm packet stuck to a particular location of her body; (2) the skin under the packet—and only the skin in that one spot—dissolved (think about a creature that can dissolve the skin in any particular spot of its body!); (3) the sperm was then admitted into her circulatory system; and (4) her circulatory system had the ability to transport the sperm to her eggs, which recognized the presence of the mutated male’s sperm and received them. And these multiple transformations in the mutating female onychophoran’s body, which all happened simultaneously and purely by chance, had to take place in the same time and the same place that a male onychophoran, by chance random mutations, developed the instinct to deposit his sperm packet somewhere on the surface of a female onychophoran’s body.
Multiple simultaneous chance mutations in a single organism producing a new and complex organ or function such as the mammalian eye or the exploding caustic missile of the Bombardier beetle is already inherently impossible. Multiple simultaneous and PERFECTLY MUTUALLY COMPLIMENTARY chance mutations in TWO ORGANISMS OF DIFFERENT SEXES would be even more impossible—if there were such a thing as degrees of impossibility.
In its usual form, the idea of speciation is a curious notion. That is, the idea that present life progressed (or changed) from lesser complex forms. Taking the idea to its logical beginning it is presumed that life, somehow, emerged from non-life. However, the “mechanism” of this first transition is hidden, and purely speculative.
Posted by Lawrence Auster at February 09, 2008 07:08 PM | Send