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Saturday, 15 November 2014
When was Christ ever in Christmas?
The Origins of Christmas
The History of Christmas
I.
When was Jesus born?
A.
Popular myth puts his birth on December 25th
in the year 1 C.E.
B.
The New Testament gives no date or year for Jesus’
birth. The earliest gospel – St. Mark’s, written about 65 CE – begins with the
baptism of an adult Jesus. This suggests that the earliest Christians lacked
interest in or knowledge of Jesus’ birthdate.
C.
The year of Jesus birth was determined by Dionysius
Exiguus, a Scythian monk, “abbot of a Roman monastery. His calculation went as
follows:
a.
In the Roman, pre-Christian era, years were counted from
ab urbe condita (“the founding of the City” [Rome]). Thus 1 AUC
signifies the year Rome was founded, 5 AUC signifies the 5th year of
Rome’s reign, etc.
b. Dionysius received a tradition that the Roman emperor
Augustus reigned 43 years, and was followed by the emperor Tiberius.
c.
Luke 3:1,23 indicates that when Jesus turned 30 years
old, it was the 15th year of Tiberius reign.
d.
If Jesus was 30 years old in Tiberius’ reign, then he
lived 15 years under Augustus (placing Jesus birth in Augustus’ 28th
year of reign).
e.
Augustus took power in 727 AUC. Therefore, Dionysius put
Jesus birth in 754 AUC.
f.
However, Luke 1:5 places Jesus’ birth in the days of
Herod, and Herod died in 750 AUC – four years before the year in which
Dionysius places Jesus birth.
D.
Joseph A. Fitzmyer – Professor Emeritus of Biblical
Studies at the Catholic University of America, member of the Pontifical Biblical
Commission, and former president of the Catholic Biblical Association – writing
in the Catholic Church’s official commentary on the New Testament[1],
writes about the date of Jesus’ birth, “Though the year [of Jesus birth is not
reckoned with certainty, the birth did not occur in AD 1. The Christian era,
supposed to have its starting point in the year of Jesus birth, is based on a
miscalculation introduced ca. 533 by Dionysius Exiguus.”
E.
The DePascha Computus, an anonymous document
believed to have been written in North Africa around 243 CE, placed Jesus
birth on March 28. Clement, a bishop of Alexandria (d. ca. 215 CE), thought
Jesus was born on November 18. Based on historical records, Fitzmyer guesses
that Jesus birth occurred on September 11, 3 BCE.
II.
How Did Christmas Come to Be Celebrated on
December 25?
A. Roman pagans first introduced the holiday of Saturnalia,
a week long period of lawlessness celebrated between December 17-25. During
this period, Roman courts were closed, and Roman law dictated that no one could
be punished for damaging property or injuring people during the weeklong
celebration. The festival began when Roman authorities chose “an enemy of the
Roman people” to represent the “Lord of Misrule.” Each Roman community selected
a victim whom they forced to indulge in food and other physical pleasures
throughout the week. At the festival’s conclusion, December 25th,
Roman authorities believed they were destroying the forces of darkness by
brutally murdering this innocent man or woman.
B.
The ancient Greek writer poet and historian Lucian (in
his dialogue entitled Saturnalia) describes the festival’s observance in
his time. In addition to human sacrifice, he mentions these customs: widespread
intoxication; going from house to house while singing naked; rape and other
sexual license; and consuming human-shaped biscuits (still produced in some
English and most German bakeries during the Christmas season).
C.
In the 4th century CE, Christianity imported
the Saturnalia festival hoping to take the pagan masses in with it. Christian
leaders succeeded in converting to Christianity large numbers of pagans by
promising them that they could continue to celebrate the Saturnalia as
Christians.[2]
D. The problem was that there was nothing intrinsically
Christian about Saturnalia. To remedy this, these Christian leaders named
Saturnalia’s concluding day, December 25th, to be Jesus’ birthday.
E.
Christians had little success, however, refining the
practices of Saturnalia. As Stephen Nissenbaum, professor history at the
University of Massachussetts, Amherst, writes, “In return for ensuring massive
observance of the anniversary of the Savior’s birth by assigning it to this
resonant date, the Church for its part tacitly agreed to allow the holiday to be
celebrated more or less the way it had always been.” The earliest Christmas
holidays were celebrated by drinking, sexual indulgence, singing naked in the
streets (a precursor of modern caroling), etc.
F.
The Reverend Increase Mather of Boston observed in
1687 that “the early Christians who first observed the Nativity on December 25
did not do so thinking that Christ was born in that Month, but because the
Heathens’ Saturnalia was at that time kept in Rome, and they were willing to
have those Pagan Holidays metamorphosed into Christian ones.”[3]
Because of its known pagan origin, Christmas was banned by the Puritans and its
observance was illegal in Massachusetts between 1659 and 1681.[4]
However, Christmas was and still is celebrated by most Christians.
G. Some of the most depraved customs of the Saturnalia
carnival were intentionally revived by the Catholic Church in 1466 when Pope
Paul II, for the amusement of his Roman citizens, forced Jews to race naked
through the streets of the city. An eyewitness account reports, “Before they
were to run, the Jews were richly fed, so as to make the race more difficult for
them and at the same time more amusing for spectators. They ran… amid
Rome’s taunting shrieks and peals of laughter, while the Holy Father stood upon
a richly ornamented balcony and laughed heartily.”[5]
H.
As part of the Saturnalia carnival throughout the 18th
and 19th centuries CE, rabbis of the ghetto in Rome were
forced to wear clownish outfits and march through the city streets to the jeers
of the crowd, pelted by a variety of missiles. When the Jewish community of Rome
sent a petition in1836 to Pope Gregory XVI begging him to stop the annual
Saturnalia abuse of the Jewish community, he responded, “It is not opportune to
make any innovation.”[6]
On December 25, 1881, Christian leaders whipped the Polish masses into
Antisemitic frenzies that led to riots across the country. In Warsaw 12 Jews
were brutally murdered, huge numbers maimed, and many Jewish women were raped.
Two million rubles worth of property was destroyed.
III.
The Origins of Christmas Customs
A.
The Origin of Christmas Tree
Just as early Christians recruited Roman pagans by associating Christmas with
the Saturnalia, so too worshippers of the Asheira cult and its offshoots were
recruited by the Church sanctioning “Christmas Trees”.[7]
Pagans had long worshipped trees in the forest, or brought them into their homes
and decorated them, and this observance was adopted and painted with a Christian
veneer by the Church.
B.
The Origin of Mistletoe
Norse mythology recounts how the god Balder was killed using a mistletoe arrow
by his rival god Hoder while fighting for the female Nanna. Druid rituals use
mistletoe to poison their human sacrificial victim.[8]
The Christian custom of “kissing under the mistletoe” is a later synthesis of
the sexual license of Saturnalia with the Druidic sacrificial cult.[9]
C.
The Origin of Christmas Presents
In pre-Christian Rome, the emperors compelled their most despised
citizens to bring offerings and gifts during the Saturnalia (in December) and
Kalends (in January). Later, this ritual expanded to include gift-giving among
the general populace. The Catholic Church gave this custom a Christian flavor
by re-rooting it in the supposed gift-giving of Saint Nicholas (see below).[10]
D.
The Origin of Santa Claus
a.
Nicholas was born in Parara, Turkey in 270 CE and
later became Bishop of Myra. He died in 345 CE on December 6th. He
was only named a saint in the 19th century.
b.
Nicholas was among the most senior bishops who convened
the Council of Nicaea in 325 CE and created the New Testament. The text they
produced portrayed Jews as “the children of the devil”[11]
who sentenced Jesus to death.
c.
In 1087, a group of sailors who idolized Nicholas moved
his bones from Turkey to a sanctuary in Bari, Italy. There Nicholas
supplanted a female boon-giving deity called The Grandmother, or Pasqua
Epiphania, who used to fill the children's stockings with her gifts. The
Grandmother was ousted from her shrine at Bari, which became the center of the
Nicholas cult. Members of this group gave each other gifts during a pageant
they conducted annually on the anniversary of Nicholas’ death, December 6.
d.
The Nicholas cult spread north until it was adopted by
German and Celtic pagans. These groups worshipped a pantheon led by Woden
–their chief god and the father of Thor, Balder, and Tiw. Woden had a long,
white beard and rode a horse through the heavens one evening each Autumn. When
Nicholas merged with Woden, he shed his Mediterranean appearance, grew a beard,
mounted a flying horse, rescheduled his flight for December, and donned heavy winter clothing.
e.
In a bid for pagan adherents in Northern Europe,
the Catholic Church adopted the Nicholas cult and taught that he did (and they
should) distribute gifts on December 25th instead of December 6th.
f.
In 1809, the novelist Washington Irving (most famous his
The Legend of Sleepy Hollow and Rip Van Winkle) wrote a satire of
Dutch culture entitled Knickerbocker History. The satire refers several
times to the white bearded, flying-horse riding Saint Nicholas using his Dutch
name, Santa Claus.
g.
Dr. Clement Moore, a professor at Union Seminary, read
Knickerbocker History, and in 1822 he published a poem based on the
character Santa Claus: “Twas the night before Christmas, when all through the
house, not a creature was stirring, not even a mouse. The stockings were hung
by the chimney with care, in the hope that Saint Nicholas soon would be there…”
Moore innovated by portraying a Santa with eight reindeer who descended
through chimneys.
h.
The Bavarian illustrator Thomas Nast almost completed the
modern picture of Santa Claus. From 1862 through 1886, based on Moore’s
poem, Nast drew more than 2,200 cartoon images of Santa for Harper’s Weekly.
Before Nast, Saint Nicholas had been pictured as everything from a stern looking
bishop to a gnome-like figure in a frock. Nast also gave Santa a home at the
North Pole, his workshop filled with elves, and his list of the good and bad
children of the world. All Santa was missing was his red outfit.
i.
In 1931, the Coca Cola Corporation contracted the
Swedish commercial artist Haddon Sundblom to create a coke-drinking
Santa. Sundblom
modeled his Santa on his friend Lou Prentice, chosen for his cheerful,
chubby
face. The corporation insisted that Santa’s fur-trimmed suit be bright,
Coca
Cola red. And Santa was born – a blend of Christian crusader, pagan
god, and
commercial idol.
IV. The Christmas Challenge
·
Christmas has always been a holiday celebrated
carelessly. For millennia, pagans, Christians, and even Jews have been swept
away in the season’s festivities, and very few people ever pause to consider the
celebration’s intrinsic meaning, history, or origins.
· Christmas celebrates the birth of the Christian
god who came to rescue mankind from the “curse of the Torah.” It is a 24-hour
declaration that Judaism is no longer valid.
·
Christmas is a lie. There is no Christian church
with a tradition that Jesus was really born on December 25th.
·
December 25 is a day on which Jews have been
shamed, tortured, and murdered.
·
Many of the most popular Christmas customs –
including Christmas trees, mistletoe, Christmas presents, and Santa Claus – are
modern incarnations of the most depraved pagan rituals ever practiced on earth.
Many who are excitedly preparing
for their Christmas celebrations would prefer not knowing about the holiday’s
real significance. If they do know the history, they often object that their
celebration has nothing to do with the holiday’s monstrous history and meaning.
“We are just having fun.”
Imagine that between 1933-45, the Nazi regime celebrated Adolf Hitler’s birthday
– April 20 – as a holiday. Imagine that they named the day, “Hitlerday,” and
observed the day with feasting, drunkenness, gift-giving, and various pagan
practices. Imagine that on that day, Jews were historically subject to perverse
tortures and abuse, and that this continued for centuries.
Now, imagine that your great-great-great-grandchildren were about to celebrate
Hitlerday. April 20th arrived. They had long forgotten about
Auschwitz and Bergen Belsen. They had never heard of gas chambers or death
marches. They had purchased champagne and caviar, and were about to begin the
party, when someone reminded them of the day’s real history and their ancestors’
agony. Imagine that they initially objected, “We aren’t celebrating the
Holocaust; we’re just having a little Hitlerday party.” If you could travel
forward in time and meet them; if you could say a few words to them, what would
you advise them to do on Hitlerday?
On December 25, 1941, Julius
Streicher, one of the most vicious of Hitler’s assistants, celebrated Christmas
by penning the following editorial in his rabidly Antisemitic newspaper, Der
Stuermer:
If one really wants to put an
end to the continued prospering of this curse from heaven that is the Jewish
blood, there is only one way to do it: to eradicate this people, this Satan’s
son, root and branch.
It was an appropriate thought for
the day. This Christmas, how will we celebrate?
Ps.
- John Bugge (1975) Early Christians,” notes The World Book Encyclopedia, “considered the celebration of anyone’s birth to be a pagan custom.” The ancient Greeks, for instance, believed that each person had a protective spirit that attended the person’s birth and thereafter watched over him. That spirit “had a mystic relation with the god on whose birthday the individual was born,” says the book The Lore of Birthdays. Birthdays also have a long-standing and an intimate link with astrology and the horoscope. 11 Besides rejecting birthday customs on account of pagan and spiritistic roots, God’s servants of old likely rejected them on principle as well. Why? These were humble, modest men and women who did not view their arrival in the world as so important that it should be celebrated. (Micah 6:8; Luke 9:48) Rather, they glorified Jehovah and thanked him for the precious gift of life.—Psalm 8:3, 4; 36:9; Revelation 4:11. Virginitas: an essay in the history of a medieval ideal, Springer ISBN 9024716950, p. 69
Friday, 14 November 2014
Materialists go aspirational on A.I yet again.
Yes, "We've Been Wrong About Robots Before," and We Still Are
Erik J. Larson November 12, 2014 5:55 AM
More hype on artificial intelligence, now from Bloomberg News ("Robot Brains Catch Humans in 25 Years, Then Speed Right On By") and promoted by Drudge:
We've been wrong about these robots before.Soon after modern computers evolved in the 1940s, futurists started predicting that in just a few decades machines would be as smart as humans. Every year, the prediction seems to get pushed back another year. The consensus now is that it's going to happen in ... you guessed it, just a few more decades.There's more reason to believe the predictions today. After research that's produced everything from self-driving cars to Jeopardy!-winning supercomputers, scientists have a much better understanding of what they're up against. And, perhaps, whatwe're up against.Nick Bostrom, director of the Future of Humanity Institute at Oxford University, lays out the best predictions of the artificial intelligence (AI) research community in his new book, "Superintelligence: Paths, Dangers, Strategies."
This sort of thing aggravates me to no end. I've read most of Bostrom's book. "Superintelligence" and the supposed "dangers" it poses to humanity are about where the global-warming scare was circa 2005. It seems like every decade or so media and academia have to whip up some pseudo-scientific issue to terrify the unknowing public, while also promising them that a few elite thinkers using money-making "science" can figure out our path forward.
Nothing has happened with IBM's "supercomputer" Watson(pictured above) other than the probabilistic scoring of questions to answers using Big Data, with minimal actual natural language understanding. No surprise there: language understanding frustrates computation and has embarrassed AI since its inception. Outside of playing Jeopardy -- in an extremely circumscribed only-the-game-of-Jeopardy fashion -- the IBM system is completely, perfectly worthless.
It's worthlessness as a model of human intelligence is obvious from the fact that we clearly don't have a "play Jeopardy" program running inside us, but rather a general intelligence giving us a qualitatively different facility for general language understanding. IBM, by the way, has a penchant for upping their market cap by coming out with a supercomputer that can perform a carefully circumscribed task with superfast computing techniques. Take Deep Blue beating Kasparov at chess in 1997. Deep Blue, like Watson, is useless outside of the task it was designed for, and so it too told us nothing about human intelligence -- or, really, "intelligence" at all, in the sense of a scientific theory or an insight into general thinking
Self-driving cars are another source of confusion. Heralded as evidence of a coming human-like intelligence, they're actually made possible by brute-force data: full-scale replicas of street grids using massive volumes of location data. The roof-mounted laser (which costs $80,000 a unit, so don't expect self-driving cars on the market anytime soon) as well as onboard GPS and cameras fix the location of the vehicle on the "game" grid using the real-time GPS coordinates and images from the cameras. The car is then driven around in the physical world, and the navigation is improved by using (what else?) machine learning from data on prior runs until it can get around in the area Google has plotted for it.
Computers are fast and have large memory for Big Data. Got it. But, again, this has nothing to do with human-intelligence. The hallmark of human intelligence is general thinking about different tasks, not brute-force computation of circumscribed tasks. But even this observation gives too much away to superintelligence enthusiasts.
For many commonsense "tasks" remain black boxes to computation, using Google's Big Data or not. Interestingly, where brute computation and big data fail is in surprisingly routine situations that give humans no difficulty at all. Take this statement, originally from computer scientist Hector Levesque (it also appears in Nicholas Carr's 2014 book about the dangers of automation, The Glass Cage):
The large ball crashed right through the table because it was made of Styrofoam. What was made of Styrofoam, the large ball or the table?
Watson would not perform well in answering this question, nor would Deep Blue. In fact there are no extant AI systems that have a shot at getting the right answer here, because it requires a tiny slice of knowledge about the actual world. Not "data" about word frequencies in languages or GPS coordinates or probability scoring of next-best chess moves or canned questions to canned answers in Jeopardy. It requires what AI researches call "world knowledge" or "common sense knowledge."
The problem of commonsense knowledge -- having actual, not "simulated" knowledge about the real world -- is a thorny issue that has relegated dreams of true, real AI to the stone ages so far.
When we look closely at real intelligence, things get even gloomier (or more embarrassing) for superintelligence enthusiasts, trumpeting endlessly these days about the coming rise of smart robots. It is, indeed, much like the way scientists, politicians, and celebrities reached a fever pitch about imminent global catastrophe from climate change a decade ago.
(Admittedly the analogy falls short in one respect. Superintelligence enthusiasts like Bostrom warn us about smart robots, while others such as Ray Kurzweil assure us about the coming Golden Age. Take your pick -- it's either the Apocalypse as robots outsmart and eliminate humans like pests, or we merge with them and create a new heaven on Earth.)
The commonsense knowledge problem, too, is letting superintelligence enthusiasts off easy, as the task of picking out relevant pieces of world knowledge is even trickier. Having real knowledge about the world and bringing it to bear on our everyday cognitive problems is the hallmark of human intelligence, but it's a mystery to AI scientists, and has been for decades.
The issue here is not one of degree, where the problem of general intelligence is slowly yielding to increased knowledge about machine intelligence, but rather one of kind. General human intelligence -- as opposed to automated techniques for circumscribed tasks -- is of a qualitatively different sort. There aren't any engineered systems that understand basic language, from Google or IBM or anyone else. The prospect isn't imminent either. There aren't even any good theories pointing in promising directions. It's simply one of life's mysteries, and perhaps a fundamental limitation of the underlying theory -- the theory of computation, the theory of Turing machines, that is. Depressingly, too, the current fad touting a coming superintelligence is in fact obscuring this mystery, rather than illuminating it as good science should.
Can an alligator run a steeplechase? As Levesque has pointed out, Big Data can't "crack" the answer here, because the syntactic terms "alligator" and "steeplechase" aren't likely to occur together anywhere else or with enough frequency to exploit shallow techniques.
Given that minds produce language, and that there are effectively infinite things we can say and talk about and do with language, our robots will seem very, very stupid about commonsense things for a very long time. Maybe forever.
File under "Really?"
From the Annals of Science: Chimp Cultures Are Less Complex than Human Cultures
David Klinghoffer November 13, 2014 12:46 PM
Who would have thought? It turns out that chimp tribes have cultures but these are less complex and diverse than human cultures. Why? Because chimps are less inclined to learn from each other. It's a matter of preference, not anything exceptional on the part of human beings.
Live Science reports on the new research in Biology Letters ("Human children rely more on social information than chimpanzees do"):
"This study is new in showing a species difference in readiness to incorporate social information into one's own repertoire," study researcher Edwin van Leeuwen, a doctoral student at the Max Planck Institute for Psycholinguistics in the Netherlands, told Live Science.Cultured chimps?Chimpanzees live in small groups, often near other chimp "tribes." These different groups do seem to have their own cultural traditions. For example, a 2012 study in Taï National Park in Côte d'Ivoire, found that three groups of chimps used different techniques for cracking nuts. These chimp groups interbred and intermingled, so the different tactics weren't genetic. Rather, they were likely passed down through social learning -- the definition of culture.Still, a different technique for cracking nuts is not as dramatic as completely different languages, religions, styles of dress, social mores or traditions. Humans seem unique in the ability to splinter from one another, and it's not clear why, van Leeuwen said.
So, cracking nuts isn't as "dramatic" a cultural expression as creating diverse languages, faiths, arts, and the like. And it's "not clear" why human groups create separate cultures reflecting their deep traditions and beliefs, whereas chimp do not.
Anyone who follows our colleague Wesley Smith's reporting on challenges to human exceptionalism will know what comes next: some attempt to minimize the gaping chasm that separates humans from other creatures. Ah, here it is.
Perhaps, van Leeuwen and his colleagues thought, the difference between humans and chimps is not in capability, but in motivation.
The difference between us and chimps isn't one of "capability" but "motivation." How was this confirmed? By comparing chimps and human children with a test involving the subject getting the opportunity to lift a cup from a row of cups under which the researchers concealed a treat.
The children watched and learned from other children's mistakes or successes. Chimps, not so much.
While chimps picked cups at random even after seeing another chimp find a reward, human children were more likely to search in a location where they saw another kid score a treat.
The conclusion?
The findings suggest that chimpanzees are less motivated by social information than humans, he said. This, in turn, could explain chimps' relative lack of culture; they just aren't as interested in learning from others.
It's not that humans have any special ability to create cultures above that of chimps, just that the chimps don't care enough to go that extra mile. Couldn't be bothered.
Understand? This is why for enlightenment we always need to turn to the scientists.
Monday, 10 November 2014
It's so hard to find good help these days.
Uncooperative Fruit Flies Refuse to Speciate in Laboratory Experiments
Casey Luskin January 28, 2012 7:00 AM
The TalkOrigins Speciation FAQ spends a lot of space citing papers trying to document speciation through laboratory experiments with fruit flies. Its section on "The Fruit Fly Literature" is the single longest section of alleged examples of speciation in the FAQ.
As we saw in a recent article, to establish speciation, these scientists simply wish to establish a completely reproductive isolated population. While some limited degrees of reproductive isolation were sometimes produced, complete reproductive isolation -- i.e. speciation -- was never observed in any of the examples analyzed inmy response to the FAQ.
More importantly, none of the examples in the FAQ documented significant biological change. As the notable evolutionary biologist Theodosius Dobzhansky (1972) admits, "Reproductive isolation evidently can arise with little or no morphological differentiation."1
A few examples below tell some of these stories with regards to fruit fly studies cited by the FAQ:
Case 1: "Drosophila paulistorum"
Fruit fly breeding experiments published by Dobzhansky and Pavlovsky in 1971 showed that if you start with "semispecies" within a fruit fly species which are "indistinguishable morphologically," and then subject the strains to artificial breeding experiments, then "in none" of the experiments "has anything like complete isolation been achieved."2 These results led a later reviewer to list this study among various studies where "none has succeeded in establishing complete sexual isolation."3
Moreover, there was no suggestion that the populations were no longer "indistinguishable morphologically" after the experiments. In fact, after reviewing this example, Dobzhansky concludes that sometimes "reproductive isolation and speciation precede differential adaptedness,"4 suggesting they had not diversified. At best, only a "new race or incipient species"5 was created; some authorities have challenged even the partial isolation, claiming the results "may have been due to contamination of cultures by other subspecies."6
Case 2: "Selection on Courtship Behavior in Drosophila melanogaster"
This experiment took two pre-existing strains of fruit flies from within the same species --Drosophila melanogaster -- and sought to determine whether changes in mating preferences could be induced. This included artificially killing hybrids between the strains (a process that does not necessarily mimic nature).
Incomplete reproductive isolation was established. One paper cited by the FAQ (Knight et al. 1956) called only "[p]artial sexual isolation,"7 another paper in the FAQ (Halliburton and Gall, 1981) lists this study among various studies where "none has succeeded in establishing complete sexual isolation."8
The most biological change that this example documented was small-scale behavioral differences pertaining to courtship, specifically changes in the amount of "licking" that males do to females to initiate mating. One paper cited by the FAQ (Crossley, 1974) showed just how unimpressive the sort of change observed in this experiment was:
Quantitative analysis of male and female behavior revealed the underlying causes of changed mating preferences and faster mating. In the LS experiment male courtship became more stimulating because percentage licking of both males and percentage licking plus vibration of e males increased.9
All that was observed were changes in the courtship initiation behaviors (licking and vibrations) changed between the strains. The two strains were "similar" before the experiments, and apart from slight changes in mating behaviors, remained very similar after the experiments.
Once again, not only was significant biological change not observed, but complete reproductive isolation (e.g. speciation) was not established.
Case 3: "Isolation Produced as an Incidental Effect of Selection on several Drosophila species"
In another section, the FAQ cited three studies on fruit flies which reported "slight" or "incipient" and "not complete" sexual reproductive isolation. None showed complete reproductive isolation or speciation, and none showed significant morphological change.
In one example, the FAQ discusses a paper (del Solar, 1966) which reported experiments that artificially selected for certain behavioral traits but produced only "slight" sexual isolation, or "incipient reproductive isolation," due to "changes in sexual behavior."10 The paper thus reports that complete reproductive isolation was not found:
Whether selection for geotaxis and phototaxis always and necessarily produces a change in the sexual behavior, and whether continued selection may carry the sexual divergence anywhere near complete isolation, can only be decided by further experiments.11
Not only was "anywhere near complete isolation" not achieved, but significant biological change was also not achieved. As the paper reports: "The geotactically and phototactically positive and negative strains appear to be indistinguishable in external morphology."12
Another example discussed by the FAQ in this section pertains to Dodd (1989) which reported experiments on populations of the fruit fly Drosophila pseudoobscura. Schluter and Nagel (1995) described Dodd (1989)'s findings by stating that only "some premating isolation evolved," and "Reproductive isolation between divergent lines was not complete."13 Speciation was also not said to have occurred. Aside from mating and food preferences, there were no claims of biological change between the populations. Again, we see that not only has reproductive isolation not been demonstrated, but significant biological change did not evolve.
Despite the aforementioned underwhelming results, the FAQ then discusses another paper which it admits reported "Less dramatic results." According to the paper cited by the FAQ (de Oliveira and Cordeiro, 1980), the experiment only produced "incipient isolation"14 -- not complete reproductive isolation. As for the degree of morphological change, aside from a preference for a certain pH level in food, no biological change was reported. In fact, the paper notes that among three long-standing natural races of D. willistoni, "These flies are morphologically indistinguishable." This study certainly did not change that observation: Once again we have not seen complete reproductive isolation, nor have we seen significant biological change.
Many other examples from the FAQ discuss fruit fly selection and breeding experiments, and all have essentially the same results: complete reproductive isolation is not established, and significant morphological change is not observed.
For additional details, please see the full response to the TalkOrigins Speciation FAQ.
References Cited:
[1.] Theodosius Dobzhansky, "Species of Drosophila," Science, Vol. 177 (4050):664-669 (August 25, 1972).
[2.] Theodosius Dobzhansky and Olga Pavlovsky, "Experimentally Created Incipient Species of Drosophila," Nature, Vol. 230:289-292 (April 2, 1971).
[3.] Richard Halliburton and G. A. E. Gall, "Disruptive Selection and Assortative Mating in Tribolium castaneum," Evolution, Vol. 35 (5):829-843 (September, 1981).
[4.] Theodosius Dobzhansky, "Species of Drosophila," Science, Vol. 177 (4050):664-669 (August 25, 1972).
[5.] Quoted in Jonathan Wells, The Politically Incorrect Guide to Darwinism and Intelligent Design, p. 56 (Regnery, 2006).
[6.] Jerry Coyne and H. Allen Orr quoted in Jonathan Wells, The Politically Incorrect Guide to Darwinism and Intelligent Design, p. 56 (Regnery, 2006).
[7.] G. R. Knight, Alan Robertson, and C. H. Waddington, "Selection for Sexual Isolation Within a Species," Evolution, Vol. 10 (1): 14-22 (March, 1956).
[8.] Richard Halliburton and G. A. E. Gall, "Disruptive Selection and Assortative Mating in Tribolium castaneum," Evolution, Vol. 35 (5):829-843 (September, 1981).
[9.] Stella A. Crossley, "Changes in Mating Behavior Produced by Selection for Ethological Isolation Between Ebony and Vestigial Mutants of Drosophila melanogaster," Evolution, Vol. 28 (4): 631-647 (December, 1974).
[10.] Eduardo del Solar, "Sexual Isolation Caused by Selection for Positive and Negative Phototaxis and Geotaxis in Drosophila Pseudoobscura," Genetics, Vol. 56:484-487 (1966).
[11.] Eduardo del Solar, "Sexual Isolation Caused by Selection for Positive and Negative Phototaxis and Geotaxis in Drosophila Pseudoobscura," Genetics, Vol. 56:484-487 (1966) (emphasis added).
[12.] Eduardo del Solar, "Sexual Isolation Caused by Selection for Positive and Negative Phototaxis and Geotaxis in Drosophila Pseudoobscura," Genetics, Vol. 56:484-487 (1966) (emphasis added).
[13.] Dolph Schluter and Laura M. Nagel, "Parallel Speciation by Natural Selection," The American Naturalist, Vol. 146 (2):292-301 (August, 1995).
[14.] Alice Kalisz de Oliveira and Antonio Cordeiro, "Adaptation of Drosophila willistoni experimental populations to extreme pH medium," Heredity, Vol. 44 (1): 123-130 (1980).
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