hifigator
Platinum Hoya (over 5000 posts)
Posts: 6,387
|
Post by hifigator on Aug 27, 2008 11:20:41 GMT -5
Secondly, evolution on the macro scale especially, is foundationally based on millions and millions of small, almost imperceptible mutations happening over and over, for a long, long time. The lack of progressive fossil records that detail such systemantic progressions certainly casts some degree of doubt. For you to just dismiss that issue because the "fossil record is incomplete," and because you can take a stargazers view of certain fossils and create your own chain requires a degree of faith on your part. Maybe you are right, maybe not, but you can't deny that much. (well, you can, you deny everything that doesn't fit with your own views, but honestly reasonable people won't) How many times do you need to be shown examples of transitional fossils before you'll stop claiming they don't exist? You are still missing the point. What must happen for the macro theory is a chain from one distinct specie to another. If every specie evolved from an original simple organism, then there would need to be literally millions and millions of chains. The very absence of one clear and undeniable chain certainly calls into question the theory. What the author of the paper that 9797 referenced said, by his own admission, was an interpretation of a handful of fossil which could have developed in the manner he suggested, although, once again, by his own admission, it was more likely that the assorted fossils that we do have actually evolved from a common ancestor -- which we have yet to discover. Once again the chain is created with a large degree of literary freedom, much the same way Orion the Hunter was created by star gazers with a bunch of extra time on their hands thousands of years ago.
|
|
The Stig
Diamond Hoya (over 2500 posts)
Posts: 2,844
|
Post by The Stig on Aug 27, 2008 12:01:25 GMT -5
You are still missing the point. What must happen for the macro theory is a chain from one distinct specie to another. If every specie evolved from an original simple organism, then there would need to be literally millions and millions of chains. The very absence of one clear and undeniable chain certainly calls into question the theory. What the author of the paper that 9797 referenced said, by his own admission, was an interpretation of a handful of fossil which could have developed in the manner he suggested, although, once again, by his own admission, it was more likely that the assorted fossils that we do have actually evolved from a common ancestor -- which we have yet to discover. Once again the chain is created with a large degree of literary freedom, much the same way Orion the Hunter was created by star gazers with a bunch of extra time on their hands thousands of years ago. Simply not true. You're acting like every creature that has ever lived was fossilized. The simple fact is that the extreme majority of organisms that have lived on this planet left absolutely zero trace of their existence. Fossils only exist for a tiny minority of creatures, and of all those fossils only a tiny minority have been discovered and analyzed by professionals. So you're never going to get a complete chain in a fossil record, simply because most of the creatures in that complete chain were never fossilized. Instead, you'll get tiny glimpses of the past, and have to come up with a story that fits those tiny glimpses. That story may be right or it may be wrong, and it certainly won't be complete. But that doesn't change the underlying fact that evolution happened. Again, it's the concept versus the details. You can get the sequence of evolution or the details of X evolving into Y and not Z wrong, but that doesn't change the fact that evolution happened. Here's an analogy: You're trying to trace the history of a person, so you go into their attic and find a box of old shirts. You find a shirt that fits a 5 year old, a shirt that fits a teenager, a couple college shirts, and some shirts from adult life. From that you can tell part of his life story, although you can't fill in every detail. You might even get some of the details wrong. If the college age shirts say 'Florida' on them, you might assume he went to Florida, when in reality he went to Maryland and was just a Florida fan. But that doesn't change the fact that the person existed and grew up. Just because you don't have a shirt from when he was a baby doesn't mean he never was a baby. You can't rationally expect to find every single shirt he ever wore, since he probably threw the majority of them out.
|
|
hifigator
Platinum Hoya (over 5000 posts)
Posts: 6,387
|
Post by hifigator on Aug 27, 2008 14:13:51 GMT -5
I finally found the link I have been looking for. This is the best to illustrate my point, which as I have stated is simply that there are legitimate questions to ask and some uncertainties which simply give some degree of doubt to macroevolutionary theory:
The Only Direct Evidence
CARL DUNBAR , Yale Univ. "Although the comparative study of living animals and plants may give very convincing circumstantial evidence, fossils provide the only historical, documentary evidence that life has evolved from simpler to more and more complex forms." <HISTORICAL GEOLOGY>, p. 47
S. M. STANLEY , Johns Hopkins Univ., "It is doubtful whether, in the absence of fossils, the idea of evolution would represent anything more than an outrageous hypothesis....The fossil record and only the fossil record provides direct evidence of major sequential changes in the Earth's biota."< NEW EVOLUTIONARY TIMETABLE>, 1981, p.72
<IN THEIR "BEGINNING". Sudden; Complex; Diverse; Every Animal Phylum; Assumed History Missing>
STEPHEN GOULD , Harvard, "...one outstanding fact of the fossil record that many of you may not be aware of; that since the so called Cambrian explosion...during which essentially all the anatomical designs of modern multicellular life made their first appearance in the fossil record, no new Phyla of animals have entered the fossil record.", Speech at SMU, Oct.2, 1990
PRESTON CLOUD & MARTIN F. GLAESSNER , "Ever since Darwin, the geologically abrupt appearance and rapid diversification of early animal life have fascinated biologist and students of Earth history alike....This interval, plus Early Cambrian, was the time during which metazoan life diversified into nearly all of the major phyla and most of the invertebrate classes and orders subsequently known." <SCIENCE>, Aug.27, 1982
RICHARD MONASTERSKY , Earth Science Ed., Science News, "The remarkably complex forms of animals we see today suddenly appeared....This moment, right at the start of the Earth's Cambrian Period...marks the evolutionary explosion that filled the seas with the earth's first complex creatures....'This is Genesis material,' gushed one researcher....demonstrates that the large animal phyla of today were present already in the early Cambrian and that they were as distinct from each other as they are today...a menagerie of clam cousins, sponges, segmented worms, and other invertebrates that would seem vaguely familiar to any scuba diver." <Discover>, p.40, 4/93
RICHARD DAWKINS , Cambridge, "And we find many of them already in an advanced state of evolution, the very first time they appear. It is as though they were just planted there, without any evolutionary history. Needless to say, this appearance of sudden planting has delighted creationists....the only alternative explanation of the sudden appearance of so many complex animal types in the Cambrian era is divine creation...", <THE BLIND WATCHMAKER>, 1986, p229-230
H.S. LADD, UCLA , "Most paleontologists today give little thought to fossiliferous rocks older than the Cambrian, thus ignoring the most important missing link of all. Indeed the missing PreCambrian record cannot properly he described as a link for it is in reality, about ninetenths of the chain of life: the first ninetenths.", <Geo. So. of Am. Mem>. 1967, Vol.II, p.7
PERCY E. RAYMOND , Prof. of Paleontology, Harvard, "It is evidence that the oldest Cambrian fauna is diversified and not so simple, perhaps, as the evolutionists would hope to find it. Instead of being composed chiefly of protozoa's, it contains no representatives of that phylum but numerous members of seven higher groups are present, a fact which shows that the greater part of the major differentiation of animals had already taken place in those ancient times.", <PREHISTORIC LIFE>, 1967 p.23
<TREES & FISH IN CAMBRIAN>
JOHN E. REPETSKI , U.S. Geological Survey, "The oldest land plants now known are from the Early Cambrian... Approximately 60 Cambrian sporegenera are now on record ....represent 6 different groups of vascular plants...", <Evolution>, Vol. 13, June '59, p.264-275
DANIEL I. AXELROD , UCLA, "This report of fish material from Upper Cambrian rocks further extends the record of the vertebrates by approximately 40 million years." [WY, OK, WA, NV, ID, AR] <Science>, Vol. 200, 5 May, 1978, p.529
<"TREES" Contradicted By Fossils, From SOME SIMILARITIES, Ignoring Others>
SEPARATE LIVING KINDS , STEPHEN JAY GOULD, Harvard, "Our modern phyla represent designs of great distinctness, yet our diverse world contains nothing in between sponges, corals, insects, snails, sea urchins, and fishes (to choose standard representatives of the most prominent phyla).", <Natural History>, p.15, Oct. 1990
SEPARATE FOSSIL KINDS , Valentine (U. CA) & Erwin (MI St.), "If we were to expect to find ancestors to or intermediates between higher taxa, it would be the rocks of the late Precambrian to Ordovician times, when the bulk of the world's higher animal taxa evolved. Yet traditional alliances are unknown or unconfirmed for any of the phyla or classes appearing then.", <Development As An Evolutionary Process>, p.84, 1987.
"TREES" NOT FROM FOSSILS , S. J. GOULD, Harvard, "The evolutionary trees that adorn our textbooks have data only at the tips and nodes of their branches; the rest is inference, however reasonable, not the evidence of the fossils.", <Nat. His>., V.86, p.13
STORY TIME , COLIN PATTERSON, Senior Paleontologist, British Museum of Nat. History, "You say I should at least 'show a photo of the fossil from which each type or organism was derived.' I will lay it on the line-there is not one such fossil for which one could make a watertight argument." "It is easy enough to make up stories of how one form gave rise to another. ... But such stories are not part of science, for there is no way of putting them to the test. ... I don't think we shall ever have any access to any form of tree which we can call factual."< HARPER'S>, Feb. 1984, p.56
ARBITRARY ARRANGEMENT , R.H. DOTT, U. of Wis. & R.L. BATTEN, Columbia U., A.M.N.H., "We have arranged the groups in a traditional way with the 'simplest' forms first, and progressively more complex groups following. This particular arrangement is arbitrary and depends on what definition of 'complexity' you wish to choose. ...things are alike because they are related, and the less they look alike, the further removed they are from their common ancestor." <EVOLUTION OF THE EARTH>, p.602
UNRELATED LOOKALIKES , J.Z. YOUNG, Prof. of Anatomy, Oxford, "....similar features repeatedly appear in distinct lines. ...Parallel evolution is so common that it is almost a rule that detailed study of any group produces a confused taxonomy. Investigators are unable to distinguish populations that are parallel new developments from those truly descended from each other." <LIFE OF THE VERTEBRATES>, p.779
INTERPRETATION OF SIMILARITY , T.H. MORGAN Prof. Zoology, Columbia, Univ., "If, then, it can be established beyond dispute that similarity or even identity of the same character in different species is not always to be interpreted to mean that both have arisen from a common ancestor, the whole argument from comparative anatomy seems to tumble in ruins.", <SCI. MO.,> 16;3;237, p.216
NONGENETIC SIMILARITY , SIR GAVIN DEBEER, Prof. Embry., U. London, Director BMNH, "It is now clear that the pride with which it was assumed that the inheritance of homologous structures from a common ancestor explained homology was misplaced; for such inheritance cannot be ascribed to identity of genes. The attempt to find homologous genes has been given up as hopeless." Oxford Biology Reader, p.16,< HOMOLOGY AN UNSOLVED PROBLEM>
EMBRYONIC RECAPITULATION? , Ashley Montagu, "The theory of recapitulation was destroyed in 1921 by Professor Walter Garstang in a famous paper. Since then no respectable biologist has ever used the theory of recapitulation, because it was utterly unsound, created by a Nazi-like preacher named Haeckel.",< Montagu-Gish Prinston Debate, 4/12/1980>
<Significant Change Is Not Observed>
BOTHERSOM DISTRESS , STEPHEN J. GOULD, Harvard, Lecture at Hobart & William Smith College, 14/2/1980. "Every paleontologist knows that most species don't change. That's bothersome....brings terrible distress. ...They may get a little bigger or bumpier but they remain the same species and that's not due to imperfection and gaps but stasis. And yet this remarkable stasis has generally been ignored as no data. If they don't change, its not evolution so you don't talk about it."
DESIGNS , S.J. GOULD, Harvard, "We can tell tales of improvement for some groups, but in honest moments we must admit that the history of complex life is more a story of multifarious variation about a set of basic designs than a saga of accumulating excellence....I regard the failure to find a clear 'vector of progress' in life's history as the most puzzling fact of the fossil record....we have sought to impose a pattern that we hoped to find on a world that does not really display it.", <Natural His>., 2/82, p.22
<Required Transitional Forms Missing>
DARWIN'S BIGGEST PROBLEM , "....innumerable transitional forms must have existed but why do we not find them embedded in countless numbers in the crust of the earth? ....why is not every geological formation and every stratum full of such intermediate links? Geology assuredly does not reveal any such finely graduated organic chain, and this perhaps is the greatest objection which can be urged against my theory". <ORIGIN OF THE SPECIES>.
MORE EMBARRASSING , DAVID M. RAUP, Univ. Chicago; Chicago Field Mus. of N.H., "The evidence we find in the geologic record is not nearly as compatible with darwinian natural selection as we would like it to be. Darwin was completely aware of this. He was embarrassed by the fossil record because it didn't look the way he predicted it would.... Well, we are now about 120 years after Darwin and the knowledge of the fossil record has been greatly expanded. We now have a quarter of a million fossil species but the situation hasn't changed much. ...ironically, we have even fewer examples of evolutionary transition than we had in Darwin's time. By this I mean that some of the classic cases of darwinian change in the fossil record, such as the evolution of the horse in North America, have had to be discarded or modified as the result of more detailed information." <F.M.O.N.H.B>., Vol.50, p.35
GOOD RECORD-BAD PREDICTION , NILES ELIDRIDGE, Columbia Univ., American Museum of Nat. Hist., "He [Darwin] prophesied that future generations of paleontologists would fill in these gaps by diligent search. ... One hundred and twenty years of paleontological research later, it has become abundantly clear that the fossil record will not confirm this part of Darwin's predictions. Nor is the problem a miserably poor record. The fossil record simply shows that this prediction was wrong." <The Myths of Human Evolution>, p.45-46
<Proposed Links "Debunked">
<THE HORSE "STORY",> COLIN PATTERSON, Senior Paleontologist British Museum of Natural History, <Harper's>, p. 60, 1984. "There have been an awful lot of stories, some more imaginative than others, about what the nature of that history [of life] really is. The most famous example, still on exhibit downstairs, is the exhibit on horse evolution prepared perhaps fifty years ago. That has been presented as the literal truth in textbook after textbook. Now I think that that is lamentable, particularly when the people who propose those kinds of stories may themselves be aware of the speculative nature of some of that stuff."
STORY TIME OVER , DEREK AGER, Univ. at Swansea, Wales, "It must be significant that nearly all the evolutionary stories I learned as a student...have now been 'debunked.' Similarly, my own experience of more than twenty years looking for evolutionary lineage's among the Mesozoic Brachiopoda has proved them equally elusive.",< PROC. GEOL. ASSO>., Vol.87, p.132
<"FOSSIL BIRD SHAKES EVOLUTIONARY HYPOTHESIS">, <Nature>, Vol. 322, 1986 p.677, "Fossil remains claimed to be of two crowsized birds 75 million years older than Archaeopteryx have been found. ...a paleontologist at Texas Tech University, who found the fossils, says they have advanced avian features. ...tends to confirm what many paleontologists have long suspected, that Archaeopteryx is not on the direct line to modern birds."
REPTILE TO BIRD W.E. SWINTON, "The origin of birds is largely a matter of deduction. There is no fossil evidence of the stages through which the remarkable change from reptile to bird was achieved."< BIOLOGY & COMPARATIVE PHYSIOLOGY OF BIRDS> Vol. 1, p.1.
<Systematic Gaps>
ORDERS, CLASSES, & PHYLA , GEORGE GAYLORD SIMPSON, Harvard, "Gaps among known species are sporadic and often small. Gaps among known orders, classes, and phyla are systematic and almost always large.", <EVOLUTION OF LIFE>, p. 149
GENUINE KNOWLEDGE , D.B. KITTS, University of Oklahoma, "Despite the bright promise that paleontology provides a means of "seeing" evolution, it has presented some nasty difficulties for evolutionists, the most notorious of which is the presence of 'gaps' in the fossil record. Evolution requires intermediate forms between species and paleontology does not provide them... The 'fact that discontinuities are almost always and <systematically> present at the origin of really big categories' is an item of genuinely historical knowledge.",< Evolution>, Vol. 28, p. 467
NOT ONE ! D.S. WOODROFF, Univ. of CA, San Diego, "But fossil species remain unchanged throughout most of their history and the record fails to contain a single example of a significant transition."< Science>, Vol.208, 1980, p.716
EVIDENCE A MATTER OF FAITH , A.C. SEWARD, Cambridge, <PLANT LIFE THROUGH THE AGES>, p.561, "The theoretically primitive type eludes our grasp; our faith postulates its existence but the type fails to materialize."
"WE KNEW BETTER" , NILES ELDREDGE, Columbia Univ., American Museum Of Natural History, "And it has been the paleontologist my own breed who have been most responsible for letting ideas dominate reality: .... We paleontologist have said that the history of life supports that interpretation [gradual adaptive change], all the while knowing that it does not.", <TIME FRAMES>, 1986, p.144
<Punctuated Equilibrium>
<Unobserved imagined scenario to explain missing evidence, based on fossils not found, mechanisms not observed>
"UNEMBARRASSED" , GOULD & ELDREDGE, "In fact, most published commentary on punctuated equilibria has been favorable. We are especially pleased that several paleontologists now state with pride and biological confidence a conclusion that had previously been simply embarrassing; 'all these years of work and I haven t found any evolution'. (R.A. REYMENT Quoted) "The occurrences of long sequences within species are common in boreholes and it is possible to exploit the statistical properties of such sequences in detailed biostratigraphy. It is noteworthy that gradual, directed transitions from one species to another do not seem to exist in borehole samples of microorganisms." (H.J. MACGILLAVRY Quoted) "During my work as an oil paleontologist I had the opportunity to study sections meeting these rigid requirements. As an ardent student of evolution, moreover, I was continually on the watch for evidence of evolutionary change. ...The great majority of species do not show any appreciable evolutionary change at all. These species appear in the section (first occurrence) without obvious ancestors in underlying beds, are stable once established." <Paleobiology>, Vol.3, p.136
PUNCTUATED EQUILIBRIUM , S.M. STANLEY, Johns Hopkins U. "The record now reveals that species typically survive for a hundred thousand generations, or even a million or more, without evolving very much. We seem forced to conclude that most evolution takes place rapidly...a punctuational model of evolution...operated by a natural mechanism whose major effects are wrought exactly where we are least able to study them in small, localized, transitory populations. ...The point here is that if the transition was typically rapid and the population small and localized, fossil evidence of the event would never be found.", <New Evolutionary Timetable>, 1981 pp.77, 110
PUNCTUATED EQUILIBRIUM? COLIN PATTERSON, British Mus. of N. H., "Well, it seems to me that they have accepted that the fossil record doesn't give them the support they would value so they searched around to find another model and found one. ...When you haven't got the evidence, you make up a story that will fit the lack of evidence. ", Quoted in: <DARWIN'S ENIGMA>, p. 100
INAPPLICABLE TO "KINDS" , Valentine (Univ. of CA) & Erwin (MI St. Univ), "We conclude that...neither of the contending theories of evolutionary change at the species level, phyletic gradualism or punctuated equilibrium, seem applicable to the origin of new body plans.", <Development As An Evolutionary Process>, p.96, 1987.
<Implication Of The Fossils>
PALEONTOLOGY DOES NOT PROVE EVOLUTION , D.B. KITTS, University of Oklahoma, "The claim is made that paleontology provides a direct way to get at the major events of organic history and that, furthermore, it provides a means of testing evolutionary theories....the paleontologist can provide knowledge that cannot be provided by biological principles alone. But he cannot provide us with evolution.",< Evolution>, Vol.28, p.466
DON'T USE THE FOSSILS , MARK RIDLEY, Oxford, "...a lot of people just do not know what evidence the theory of evolution stands upon. They think that the main evidence is the gradual descent of one species from another in the fossil record. ...In any case, no real evolutionist, whether gradualist or punctuationist, uses the fossil record as evidence in favor of the theory of evolution as opposed to special creation." <New Scientist>, June, 1981, p.831
FOSSILS INDICATE CREATION! E.J.H. CORNOR, Cambridge "Much evidence can be adduced in favor of the Theory of Evolution from Biology, Biogeography, and Paleontology, but I still think that to the unprejudiced the fossil record of plants is in favor of special creation." <CONTEMPORARY BOTANICAL THOUGHT>, p.61 <HR>
|
|
hifigator
Platinum Hoya (over 5000 posts)
Posts: 6,387
|
Post by hifigator on Aug 27, 2008 14:28:20 GMT -5
At the risk of overwhelming you with quotes from reputable individuals that support what I have been saying:
Indeed that would have to be the case. Well in excess of a million species are alive today. For all those to have evolved from common ancestors, we should be able to find millions, if not hundreds of millions, of intermediate forms gradually evolving into other species.
It was not only fossils of transitional species between apes and human beings that would have to be discovered to prove Darwin's theory. The gaps were enormous. Science writer Richard Milton notes that the missing links "included every part of the animal kingdom: from whelks to whales and from bacteria to bactrian camels. Darwin and his successors envisaged a process that would begin with simple marine organisms living in ancient seas, progressing through fishes, to amphibians—living partly in the sea and partly on land—and hence on to reptiles, mammals, and eventually the primates, including humans" (Shattering the Myths of Darwinism, 1997, p. 253).
However, even Darwin himself struggled with the fact that the fossil record failed to support his conclusions. "Why," he asked, "if species have descended from other species by fine gradations, do we not everywhere see innumerable transitional forms? . . . Why do we not find them imbedded in countless numbers in the crust of the earth?" (The Origin of Species, 1859, Masterpieces of Science edition, 1958, pp. 136-137).
"The number of intermediate varieties, which have formerly existed, [must] be truly enormous," he wrote. "Why then is not every geological formation and every stratum full of such intermediate links? Geology assuredly does not reveal any such finely graduated organic chain; and this, perhaps, is the most obvious and serious objection which can be urged against the theory" (Darwin, pp. 260-261).
Darwin acknowledged that the fossil record failed to support his conclusions. But, since he thought his theory obviously was the correct explanation for the earth's many and varied forms of life, he and others thought it only a matter of time before fossilized missing links would be found to fill in the many gaps. His answer for the lack of fossil evidence to support his theory was that scientists hadn't looked long enough and hadn't looked in the right places. Eventually they would find the predicted fossil remains that would prove his view. "The explanation lies, I believe, in the extreme imperfection of the geological record," he wrote (p. 261).
He was convinced that later explorations and discoveries would fill in the abundant gaps where the transitional species on which his theory was based were missing. But now, a century and a half later, after literally hundreds of thousands of fossil plants and animals have been discovered and cataloged and with few corners of the globe unexplored, what does the fossil record show?
What the record reveals
David Raup is a firm believer in evolution and a respected paleontologist (a scientist who studies fossils) at the University of Chicago and the Field Museum. However, he admits that the fossil record has been misinterpreted if not outright mischaracterized, stating: "A large number of well-trained scientists outside of evolutionary biology and paleontology have unfortunately gotten the idea that the fossil record is far more Darwinian than it is. This probably comes from the oversimplification inevitable in secondary sources: low-level textbooks, semi-popular articles, and so on. Also, there is probably some wishful thinking involved. In the years after Darwin, his advocates hoped to find predictable progressions. In general, these have not been found— yet the optimism has died hard, and some pure fantasy has crept into textbooks" (Science, Vol. 213, July 1981, p. 289, emphasis added).
Niles Eldredge, curator in the department of invertebrates at the American Museum of Natural History and adjunct professor at the City University of New York, is another vigorous supporter of evolution. But he finds himself forced to admit that the fossil record fails to support the traditional evolutionary view.
"No wonder paleontologists shied away from evolution for so long," he writes. "It seems never to happen. Assiduous collecting up cliff faces yields zigzags, minor oscillations, and the very occasional slight accumulation of change—over millions of years, at a rate too slow to really account for all the prodigious change that has occurred in evolutionary history.
"When we do see the introduction of evolutionary novelty, it usually shows up with a bang, and often with no firm evidence that the organisms did not evolve elsewhere! Evolution cannot forever be going on someplace else. Yet that's how the fossil record has struck many a forlorn paleontologist looking to learn something about evolution" (Reinventing Darwin: The Great Debate at the High Table of Evolutionary Theory, 1995, p. 95, emphasis added).
After an immense worldwide search by geologists and paleontologists, the "missing links" Darwin predicted would be found to bolster his theory are still missing.
The late Harvard University paleontologist Stephen Jay Gould is perhaps today's best-known popular writer on evolution. An ardent evolutionist, he collaborated with Professor Eldredge in proposing alternatives to the traditional view of Darwinism. Like Eldredge, he recognized that the fossil record fundamentally conflicted with Darwin's idea of gradualism.
"The history of most fossil species," he wrote, "includes two features particularly inconsistent with gradualism [gradual evolution from one species to another]:
"[1] Stasis. Most species exhibit no directional [evolutionary] change during their tenure on earth. They appear in the fossil record looking pretty much the same as when they disappear; morphological [anatomical or structural] change is usually limited and directionless.
"[2] Sudden appearance. In any local area, a species does not arise gradually by the steady transformation of its ancestors: it appears all at once and 'fully formed'" ("Evolution's Erratic Pace," Natural History, May 1977, pp. 13-14, emphasis added).
|
|