I Don't Have Enough FAITH to Be an ATHEIST

Does The Cambrian Explosion Disprove Darwinism?


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By Ryan Leasure
In The Origin of Species, Charles Darwin argued that “all the organic beings which have ever lived on this earth have descended from some one primordial form.”1 Darwin suggested that this primordial life form gradually developed into new life forms, which subsequently developed more life forms, eventually producing all the complex life forms we see today.

In short, Darwin asserted that all life descended from a common ancestor. And starting from that original ancestor, he believed nature selected the fittest species which would survive, reproduce, and last for generations. At the same time, nature would sift out the weaker species.
Darwin famously pictured the history of life as a tree. The first life form was the trunk, and all subsequent life forms are the branches. He was certain that the progression of life takes no sudden leaps, but evolves gradually with small-scale variations.
There was one small problem, though. When Darwin proposed his theory, some of the leading paleontologists rejected his theory based on the fossil record. More specifically, they didn’t believe Darwin’s theory could be reconciled with the Cambrian Explosion.

The Cambrian Explosion
The Cambrian Explosion refers to the abrupt appearance of animal life forms in the geological strata without any trace of prior transitional fossils. During this phenomenon, most of the major animal phyla appear in the strata in a geological blink of an eye.
Darwin was aware of the Cambrian Explosion. He noted, “If my theory be true, it is indisputable that before the lowest [Cambrian] stratum was deposited, long periods elapsed, as long as, or probably far longer than, the whole interval from the [Cambrian] age to the present day; and that during these vast, yet quite unknown, periods of time, the world swarmed with living creatures.”2 Meaning, if he’s right, we should find not just a few missing links, but innumerable links preceding the Cambrian era.
After all, Darwin adamantly declared that his theory could take no sudden leaps. He knew that large-scale variations inevitably resulted in deformity or death. Louis Agassiz, the leading paleontologist of Darwin’s day, put it this way: “It is a matter of fact that extreme variations finally degenerate or become sterile; like monstrosities, they die out.”3
Yet these Cambrian animals seemingly came out of nowhere. Of our twenty-seven different phyla — or macro-level animal classifications — at least twenty of them appear in the geological strata suddenly, not gradually as Darwin’s theory demands.4 Hence the name “Cambrian Explosion.”
So how did Darwin respond to this dilemma? He acknowledged, “To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer... The case at present must maintain inexplicable, and may be truly urged as a valid argument against the views here entertained.”5
Darwin, however, was confident that future discoveries would vindicate his theory. Future geological discoveries have since come. Yet these discoveries continue to present fatal objections to his theory.

The Tree Turned Upside Down
Darwin’s tree of life suggests that small-scale differences among species would precede large-scale differences, eventually resulting in different phyla categories altogether. That is to say, as time progressed, and the branches formed, wholesale diversity would result among living species. Phyla categories would only emerge after lower classifications of animals — like species, orders, and families — evolved so much as to warrant macro-level distinctions.
Richard Dawkins put it this way: “What had been distinct species within one genus become, in the fullness of time, distinct genera within one family. Later, families will be found to have diverged to the point where taxonomists prefer to...
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