A Quote by David M. Raup
We now have a quarter of a million fossil species, but the situation hasn't changed much... We have even fewer examples of evolutionary transition than we had in Darwin's time.
Related Quotes
Ironically, we have even fewer examples of evolutionary transitions than we had in Darwin's time.
Paleontologists ever since Darwin have been searching (largely in vain) for the sequences of insensibly graded series of fossils that would stand as examples of the sort of wholesale transformation of species that Darwin envisioned as the natural product of the evolutionary process. Few saw any reason to demur - though it is a startling fact that ...most species remain recognizably themselves, virtually unchanged throughout their occurrence in geological sediments of various ages.
Paleontologists had long been aware of a seeming contradiction between Darwin's postulate of gradualism, confirmed by the work of population genetics, and the actual findings of paleontology. Following phyletic lines through time seemed to reveal only minimal gradual changes but no clear evidence for any change of a species into a different genus or for the gradual origin of an evolutionary novelty. Anything truly novel always seemed to appear quite abruptly in the fossil record.
If it is true that an influx of doubt and uncertainty actually marks periods of healthy growth in a science, then evolutionary biology is flourishing today as it seldom has flourished in the past. For biologists collectively are less agreed upon the details of evolutionary mechanics than they were a scant decade ago. Superficially, it seems as if we know less about evolution than we did in 1959, the centennial year of Darwin's on the Origin of Species.
There are about 250,000 different species of fossil plants and animals known . . In spite of this large quantity of information, it is but a tiny fraction of the diversity that [according to the theory] actually lived in the past. There are well over a million species living today and . . [it is] possible to predict how many species ought to be in our fossil record. That number is at least 100 times the number we have found.
The known fossil record fails to document a single example of phyletic evolution i.e., a species becoming a new species accomplishing a major morphological transition and hence offers no evidence that the gradualistic model can be valid.
The fewer species there are and the fewer species we know about, the fewer questions we even know to ask.
There were four million people in the American Colonies and we had Jefferson and Franklin. Now we have over 200 million and the two top guys are Clinton and Dole. What can you draw from this? Darwin was wrong.
A Chinese paleontologist lectures around the world saying that recent fossil finds in his country are inconsistent with the Darwinian theory of evolution. His reason: The major animal groups appear abruptly in the rocks over a relatively short time, rather than evolving gradually from a common ancestor as Darwin's theory predicts. When this conclusion upsets American scientists, he wryly comments: "In China we can criticize Darwin but not the government. In America you can criticize the government but not Darwin."
America's got a Darwin problem - and it matters. According to a 2009 Gallup poll taken on the 200th anniversary of Charles Darwin's birth, fewer than 40% of Americans are willing to say that they 'believe in evolution.'
The reality is that if we in this rich, lucky quarter of the planet cannot make a stand for the 30 million other species we share this planet with, let alone our own species, then who can?
When Cuba lost their fossil fuel pipeline when the Soviet Union collapsed in 1990. Overnight they had no choice, they had to transition to clean energy, they didn't have any fuel to burn, and they also had to transition to a healthy food system, an organic system - their economy is crashing, this was not a planned transition. This was a crisis, but a crisis nonetheless, in which pollution went away. And it's very instructive to see what happened to their health.
Most people are surprised when they hear my somber figures: we know of 2 million species of plants, animals and microorganisms, and we can give them each a scientific name and a diagnostic description. We know, perhaps generously, more than just a little bit of the anatomy in no more than 10 percent. We have done thorough studies in fewer than one-tenth of 1 percent. And the total number of species on Earth is unknown to the nearest order of magnitude.
But did you know that during the past quarter century, no presidential election has been won by more than ten million ballots cast? Yet every federal election during the same time period had at least one hundred million people of voting age who did not bother to vote!
Darwin's theory of evolution is a framework by which we understand the diversity of life on Earth. But there is no equation sitting there in Darwin's 'Origin of Species' that you apply and say, 'What is this species going to look like in 100 years or 1,000 years?' Biology isn't there yet with that kind of predictive precision.
Darwin's prediction of rampant, albeit gradual, change affecting all lineages through time is refuted. The record is there, and the record speaks for tremendous anatomical conservatism. Change in the manner Darwin expected is just not found in the fossil record.
Related Authors
Austin O'Malley Quotes
American
Scientist
Carl Sagan Quotes
American
Scientist
Charles Darwin Quotes
English
Scientist
E. O. Wilson Quotes
American
Scientist
Georg C. Lichtenberg Quotes
German
Scientist
Isaac Asimov Quotes
American
Scientist
Jane Goodall Quotes
English
Scientist
Margaret Mead Quotes
American
Scientist
Nassim Nicholas Taleb Quotes
Lebanese
Scientist
Neil deGrasse Tyson Quotes
American
Scientist
Richard Dawkins Quotes
English
Scientist
Stephen Jay Gould Quotes
American
Scientist
Steven Pinker Quotes
Canadian
Scientist
Sylvia Earle Quotes
American
Scientist
Thomas Huxley Quotes
English
Scientist
W. Edwards Deming Quotes
American
Scientist