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Has All Life Descended From a Common Ancestor?The Origin of Life—Five Questions Worth Asking
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What has the research uncovered? In 1999 biologist Malcolm S. Gordon wrote: “Life appears to have had many origins. The base of the universal tree of life appears not to have been a single root.” Is there evidence that all the major branches of life are connected to a single trunk, as Darwin believed? Gordon continues: “The traditional version of the theory of common descent apparently does not apply to kingdoms as presently recognized. It probably does not apply to many, if not all, phyla, and possibly also not to many classes within the phyla.”29a
Recent research continues to contradict Darwin’s theory of common descent. For example, in 2009 an article in New Scientist magazine quoted evolutionary scientist Eric Bapteste as saying: “We have no evidence at all that the tree of life is a reality.”30 The same article quotes evolutionary biologist Michael Rose as saying: “The tree of life is being politely buried, we all know that. What’s less accepted is that our whole fundamental view of biology needs to change.”31b
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Has All Life Descended From a Common Ancestor?The Origin of Life—Five Questions Worth Asking
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For example, in an interview in 2008, evolutionary biologist Stuart Newman discussed the need for a new theory of evolution that could explain the sudden appearance of novel forms of life. He said: “The Darwinian mechanism that’s used to explain all evolutionary change will be relegated, I believe, to being just one of several mechanisms—maybe not even the most important when it comes to understanding macroevolution, the evolution of major transitions in body type.”33
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Has All Life Descended From a Common Ancestor?The Origin of Life—Five Questions Worth Asking
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b It should be noted that neither the New Scientist article nor Bapteste nor Rose mean to suggest that the theory of evolution is wrong. Their point, rather, is that Darwin’s proposed tree of life, a mainstay of his theory, is not supported by the evidence. Such scientists still seek other explanations involving evolution.
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Has All Life Descended From a Common Ancestor?The Origin of Life—Five Questions Worth Asking
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Regarding the time spans that separate many of these fossils, zoologist Henry Gee says: “The intervals of time that separate the fossils are so huge that we cannot say anything definite about their possible connection through ancestry and descent.”34c
Commenting on the fossils of fish and amphibians, biologist Malcolm S. Gordon states that the fossils found represent only a small, “possibly quite unrepresentative, sample of the biodiversity that existed in these groups at those times.” He further says: “There is no way of knowing to what extent, if at all, those specific organisms were relevant to later developments, or what their relationships might have been to each other.”35d
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Has All Life Descended From a Common Ancestor?The Origin of Life—Five Questions Worth Asking
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“Instead of finding the gradual unfolding of life,” says evolutionary paleontologist David M. Raup, “what geologists of Darwin’s time, and geologists of the present day actually find is a highly uneven or jerky record; that is, species appear in the sequence very suddenly, show little or no change during their existence in the record, then abruptly go out of the record.”32
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