Human evolution radically reappraised

The findings reported below are very politically incorrect stuff. They tend to show that the races of mankind are more different than was thought. Cochran, Lahn and others involved have previously got into big trouble from the Left over it. See here. One of the "more recent evolutionary changes" mentioned below was the comparatively recent emergence of new genes connected with brain size -- genes that seem to give a large intellectual advantage but which are mostly missing among Africans. See here and here for the academic journal abstracts. For the evidence linking brain-size and IQ, see section 6 here. I must say that I see pin-headed East-African refugees in the streets every day where I live. How incorrect of me to report that!

Human evolution has been speeding up exorbitantly, a new study contends; so much, that the latest evolutionary changes seem to largely eclipse earlier ones that accompanied modern man's "origin." The study, alongside other recent research on which it builds, amounts to a sweeping reappraisal of traditional accounts of human evolution. These generally assumed that humans have reached a pinnacle of evolution and stopped there. The findings suggest that not only is our evolution continuing: in a sense our very "origin" can be seen as ongoing, a geneticist not involved in the work said.

Gregory Cochran of the University of Utah in Salt Lake City, Utah, a co-author of the latest study, said the research may force a radical rethinking of the story of modern human evolution. "It turns it upside-down, pretty much," he said. The traditional view of humans as a finished product began to erode in recent years, scientists said, with a crop of studies suggesting our evolution indeed goes on. But the newest study goes further. It claims the process has actually accelerated.

It also downplays the importance of a much-scrutinized era around 200,000 years ago, when humans considered "anatomically modern" first appear in the fossil record. In the study, this epoch emerges as just part of a vast arc of accelerating change. "The origin of modern humans was a minor event compared to more recent evolutionary changes," wrote the authors of the research, in a presentation slated for Friday in Philadelphia at the annual meeting of the American Association of Physical Anthropologists. The authors are Cochran and anthropologist John Hawks of the University of Wisconsin-Madison. The findings will also be submitted to one or more scientific journals, Cochran said.

The proposal is "truly fascinating," wrote University of Chicago geneticist Bruce Lahn in an email. He wasn't involved in the work, though he did conduct earlier research finding that evolution may still be ongoing in the brain...

Hawks and Cochran analyzed measurements of skulls from Europe, Jordan, Nubia, South Africa, and China in the past 10,000 years, a period known as the Holocene era. They also studied European and West Asian skulls from the end of the Pleistocene era, which lasted from two million years ago until the Holocene. "A constellation of features" changed across the board, Hawks and Cochran wrote in their conference presentation. "Holocene changes were similar in pattern and... faster than those at the archaic/modern transition," the time when so-called modern humans appeared. But these changes "themselves were rapid compared to earlier hominid evolution." Hominids are a family of primates that includes humans and their upright-walking, more apelike ancestors and relatives, all extinct.

Hawks and Cochran also analyzed past genetic studies to estimate the rate of production of genes that undergo positive selection -- that is, genes that spread because they are beneficial. "The rate of generation of positively selected genes has increased as much as a hundredfold during the past 40,000 years," they wrote.

Among the most notable physical changes have been ones affecting the size of the brain case, according to Hawks and Cochran. A "thing that should probably worry people is that brains have been getting smaller for 20,000 to 30,000 years," said Cochran. But growth in more advanced brain areas might have compensated for this, he added. He speculated that an almost breakneck evolution of higher foreheads in some peoples may reflect this. A study in the Jan. 14 British Dental Journal found such a trend visible in England in just the past millennium, he noted, a mere eyeblink in evolutionary time. Research published in the Sept. 9, 2005 issue of the research journal Science by Lahn and colleagues found that two genes linked to brain size are rapidly evolving in humans.

Anthropologist Jeffrey McKee of Ohio State University said the Hawks and Cochran study bears out predictions he made in a 2000 book The Riddled Chain. Based on computer models, he argued that evolution should speed up as a population grows. This is because population growth creates more opportunities for new mutations; also, the expanded population occupies new environmental niches, which would drive evolution in new directions.....

More here

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ELSEWHERE

Full circle: Remember when grocery stores switched from paper bags to plastic bags in order to save trees? Well, now the city of San Francisco is making them switch back. A ban is going into effect that would outlaw the usual plastic grocery sacks. Instead they will be required to only offer alternatives like paper and cloth.

Iceland's Laffer Curve: "The Wall Street Journal notes that corporate tax revenue has jumped dramatically in Iceland, even though the corporate tax rate has been slashed to 18 percent. That sentence actually should say that revenues jumped because of the lower tax rate. Iceland is a clear example of the Laffer Curve. As the rate fell, companies had less reason to avoid taxes. The low rate also encouraged additional economic activity. Iceland's workers are the biggest winners, of course, since they now enjoy higher incomes and more prosperity:

Day care likely to cause disruptive behaviour?: "It is a hot-button issue in the child-care debate: will it be good for my baby? A major US study has found keeping preschoolers in long day care for a year or more increases the likelihood they will become disruptive in class later, persisting into grade 6. But the study tracking more than 1300 American children in a range of care arrangements, also found time spent in high-quality day care centres was linked to gaining higher vocabulary scores in primary school. The negative finding - associating more disruptive behaviour with formal day care irrespective of the centre's quality - was also reportedly "slight, and well within the normal range for healthy children", The New York Times said. But a lead author of the study, Jay Belksy, said it invited a broad social question: "What happens in classrooms, schools, playgrounds and communities when more and more children, at younger and younger ages, spend more and more time in centres, many that are indisputably of limited quality?"

Egyptian blogger puts the blame where it belongs: "Where does the government, the corrupt ministers, the ruthless SS officers and their soldiers come from? Aren't they egyptians? Don't they come from egyptian families and households? Aren't they born and raised here like the rest of us? Well, what does that exactly say about us? Whether we like it or not, the government is a reflection of the people. So if the government is ruthless, corrupt and dictatorial, what does that say about the people? What does it say about the parents of the police officers that order their soldiers to beat up and sexually assault women? What does it say about the families of those corrupt government officials who sign away our future and that of our children for a bunch of dirty money? What does it say about a nation that produces such a government, and accepts it, even as it plunders the country and enslaves its people? Maybe the government is right: Maybe we don't deserve Democracy."

More French ethics: "French oil giant Total SA is being investigated for illicit dealings with a rogue regime in the Middle East. This time it's Iran, but maybe you recall its experience with another dictator and something called Oil for Food. A French judge is investigating bribes that Total executives allegedly paid Iranian officials to secure business in the Islamic Republic. Last week, the judge issued preliminary charges of abuse of company funds and corruption of foreign agents against Chief Executive Christophe de Margerie. The company and Mr. de Margerie deny any wrongdoing, but the Total experience is all too typical of the way European firms cut deals with dictators while their own governments provide political cover. Meanwhile, the same French prosecutor continues to investigate Total for alleged kickbacks paid to Saddam Hussein in return for Iraqi oil."

For more postings from me, see TONGUE-TIED, EDUCATION WATCH, GREENIE WATCH, POLITICAL CORRECTNESS WATCH, GUN WATCH, SOCIALIZED MEDICINE, FOOD & HEALTH SKEPTIC, AUSTRALIAN POLITICS, IMMIGRATION WATCH and EYE ON BRITAIN. (Mirror sites here, here, here, here, here, here, here and here).

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"Why should the German be interested in the liberation of the Jew, if the Jew is not interested in the liberation of the German?... We recognize in Judaism, therefore, a general anti-social element of the present time... In the final analysis, the emancipation of the Jews is the emancipation of mankind from Judaism.... Indeed, in North America, the practical domination of Judaism over the Christian world has achieved as its unambiguous and normal expression that the preaching of the Gospel itself and the Christian ministry have become articles of trade... Money is the jealous god of Israel, in face of which no other god may exist". Who said that? Hitler? No. It was Karl Marx. See also here and here.

The Big Lie of the late 20th century was that Nazism was Rightist. It was in fact typical of the Leftism of its day. It was only to the Right of Stalin's Communism. The very word "Nazi" is a German abbreviation for "National Socialist" (Nationalsozialistisch) and the full name of Hitler's political party (translated) was "The National Socialist German Workers' Party".

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