Controversy in the Garden of Eden There is No Political Solution... by David Rheingold The history of human evolution has always been surrounded by skepticism, debate, and controversy. It comes as no surprise, then, that four years ago, when a group of researchers at the University of California at Berkeley announced that they had discovered the mother of the entire human race, they ignited a flurry of debate among scientists. This woman, who they said lived in Africa 200,000 years ago, was aptly called "Eve" by the media and the scientific community. But unlike her Biblical namesake, the first woman created, this Eve supposedly was the last common ancestor shared by every person alive today. ' Naturally, the Eve theory l posed a threat to many anthropologists who believed 1 that fossils indicated a gradual evolution of the human race over millions of years.I One such person was Milfordt Wolpoff, a professor of1 anthropology here at thea University of Michigan. Wolpoff' vehemently attacked the Eve theory in conferences and meetings since the Berkeley scientists' Jan. 1, 1987 announcement, becoming perhaps the most vocal member of the opposition. "He's the central figure," said David Frayer, an anthropologist at the University of Kansas. "He's the central figure not only from the morphological- paleoanthropological perspective, but he's also well-versed in molecular genetics. He argues on both levels." Wolpoff had already co- written a 1984 paper entitled "The Theory of Multi-Regional Evolution," which said groups of ancient humans, who were spread across Europe and Asia, remained isolated enough to develop distinct regional characteristics, but also intermingled with other groups, yielding a "gene flow" of favorable traits to ensure survival. One unconventional feature of the Berkeley group's research was that they did not rely on fossils uncovered from the dusty African plains, but instead worked with genetics within a hi- tech laboratory. After convincing 147 women to donate their placentae to science, the geneticists peered into the cells, examining cigar-shaped structures called mitochondria. Mitochondria, which generate cellular energy, contain a small amount of DNA, the genetic blueprint of life. Mitochondrial DNA, however, is inherited solely through females, since male sperm cells do not deliver the structures to the female's egg. Since the mitochondrial DNA of the father never mix with that of the mother, every child's mitochondrial DNA is identical to that of his or her mother. The only disruptions in the ongoing inheritance of mitochondrial DNA are random mutations, which are the results of any of several different processes which make the DNA sequence diverge from its original pattern. The Berkeley geneticists said these mutations occur at a steady rate. By calculating this rate, they attempted to work backward to determine how long ago the ancestors of the 147 women - who represented five continents - diverged. The women's mitochondrial DNA were similar, indicating that they had a common, relatively recent ancestor. The genetic branches all traced back to the African type of mitothondrial DNA, indicating to the scientists that Africa was the origin of the gene pool. The Eve theory implied that the older, more primitive humans, who were thriving throughout various parts of Europe and Asia at the time, must have vanished to make way for the incoming Africans. Since such populations as Java Man, homo ereaus, Peking Man and Neanderthals left no traces in the mitochondrial DNA record, they would have to have been totally replaced by the Africans with little or no interbreeding. Wolpoff calls this a "Pleistocene Holocaust." "They'd have to kill them all off. They'd have to be killer Africans," he said. "But their theory can mean something else," Wolpoff explained. "It could mean that when these invading Africans came and replaced people, that the African women interbred with the men in the populations they were replacing. Therefore, the women's genes got passed down through the mitochondria. If you think about it, that sounds okay." "But usually," he continued, "when populations come and replace other populations, or during a war or during any kind of a time when one population meets another, the dominant population kills off the men and they take the women into their own population." Wolpoff dismisses this possibility. "This is craziness. These stories can't be true. This is an interpretation which simply can't be true. And besides, I have a lot of trouble with the whole business about women being incorporated and men not being incorporated. These are sexist ideas and I don't know why they find their way into anthropology," he said. Christopher Stringer, a paleoanthropologist at the Natural History Museum in London, said it's possible that the migrating Africans may have simply been more adept at survival than the older, more primitive hominids. Stringer said he's argued for 17 years that the fossil evidence indicates that modern humans recently diverged from a common origin and, consequently, replaced the existing populations. "I see this as probably competition for the different groups - economic competition - over natural resources. I see them (Neanderthals) as fading away rather than being killed off instantly. The Neanderthals did not disappear overnight," Stringer said. But Wolpoff insists that if Neanderthals and humans were living side-by-side, they would have interbred. Penn State biochemist Mark Stoneking, one of the researchers who spawned the Eve theory, said this kind of mating may not have been possible. "One possibility would be that they (the Africans) were not capable of interbreeding with the resident populations. There would have been some sort of natural selection against those sorts of meetings," Stoneking} said. Stoneking also suggests that the migrating Africans may have carried diseases which they were immune to, but to which the natives were susceptible. Still, Wolpoff insists that interbreeding is the only reasonable explanation for the similarity between modern humans in various parts of the world today and the ancient humans that previously lived in their regions. Alan Thorne, a prehistorian at the Australian National Nucleus 23 pairs of chromosomes, one of each pair inherited from each parent . '. . Mitochondria Coffee-bean-shaped structures that generate energy by breaking down sugar and fat. They contain genetic material whose origin and purpose are not yet known. They are small, only 16,000 base pairs compared to millions in the chromosomes of the nucleus They are only inherited from the mother. None enter the egg from the sperm during fertilization, so each cell has only one set, not a pair. They have no opportunity to swap pieces of themselves the way chromosomes in the nucleus do. Thus they can trace maternal inheritance more clearly and surely than nuclear genes do. They mutate frequently, about ten times as often as nuclear genes wso there is a great deal oF varietyminthe population. Scientists can disin guish among small groups in a way that would be: ipossible. usingrnuclea r genes, which often exist in only a handful of different va rieies. University and a colleague of Wolpoff, points to the similarity in facial contours between modern Australian aborigines and the ancient populations of Java Man which used to inhabit southeast Asia. Stringer calls Australia the greatest "explanatory problem" in the Eve theory, but suggests that, due to the climate and local conditions of the arid Australian outback, the migrating Africans might have evolved the characteristics of Java Man on their own. Wolpoff, however, argues that facial features - particularly the brow ridge - would not have adapted to the environment. "We've tried to pick features that are not adaptive to the environment," Wolpoff said. "For instance, body size is usually adaptive to the environment. Bigger individuals, stockier individuals, are almost always cold-adapted. So we haven't picked features that involve cold adaptation, because (Stringer's) explanation could then be true." Thorne also attacks the notion that Eve's descendants reevolved Java Man's characteristics. "There hasn't been an evolution of the two types because there isn't a single example in evolution where two groups have evolved in exactly the same way to the same set of circumstances," he said. The Eve theory, he said, doesn't acknowledge the existence of Australian aborigines. "My present estimate is that about 50,000 living aboriginal Australians will not make their definition of homo sapiens," Thorne said. Another possible explanation for Australia, Stringer said, is the so-called "Founder Effect," which says the migrating Africans may not have been typical descendants of Eve, resembling modern aborigines instead. "If they were atypical of the population they came from, the characteristics of the new population would have become rapidly different from the parent population it came from," Stringer said. But Wolpoff believes the Founder Effect would not work in this instance. "It won't explain why people came to Australia, killed of all the Australians, and then adopted the features of the It appears that once again, we have elected a total dweeb as MSA president. As a sarcastic columnist, I'm in favor of it. At press time, I don't know exactly which dweeb won. Doesn't matter.I'm sure that whoever it is, though, they will be as good to me as Jennifer Van Valey was. Don't get the impression that I'm one of those cynics who hates X' all politicians. I like plenty of CIJ ITpoliticians. I liked Mike Dukakis. I was enthusiastic about Mike Dukakis. Kitty and I. I think we were the only two Americans who could really get excited about Mike Dukakis. Which is two more than the number of people who can get excited about our MSA candidates. Here's a party-by- party rundown. Common Sense Let me be frank: I would sooner turn my student government over to a Nazi biker gang. The Common Sense presidential candidate was Angie Burks, who, in her own words, "stands for everything that's right." (Angie does not suffer from a low self-image.) Burks is just a sophomore, and she has only scratched the surface of her humorous political potential. During the anti- deputization rally, she launched into an in-depth explanation of the history of racism in the United States, featuring the statement, "Guns didn't stop the Civil War!" After thoroughly perplexing the ralliers, she stated the point of her speech: "Guns won't stop racism!" Now, I didn't think that deputization was a very good idea, but the administration wasn't claiming that it would stop racism. I mean, you could use an argument like that against anything: "Hospitals won't stop sexism!" "Education won't stop earthquakes!" One Common Sense platform issue was opposition to the radioactive waste dump on North Campus. You may recall that a number of campus groups were concerned about this dump until it came out that yes, the waste was radioactive, but it has approximately the same radioactivity level as a McChicken Sandwich. This did not prevent Common Sense from making the dump a key to their platform. Another interesting position taken by Burks was that students should not be forced to fund MSA out of their tuition. Instead, she explained, MSA would be paid for by the University. Do you follow this? Instead of giving our tuition money directly to MSA, we would give it to the" Univerity, which would in turn hand it over to MSA. Sounds like a step in the right direction. Conservative Coalition Okay. So CC's major opposition came from a party which is practically beging to lose, right? And what did they do? Nominate Jamie Green, a man who exudes the warmth, integrity and personal charm of Darth Vader. But all right, he still has a better image than Angie Burks; all he had to do was convince the voters V that he's not a right- wing nut. So what was his first move? Announce that, if elected, he willx immediately abolish k the Peace & Justice Commission. Now there's a real r y.k confidence builder. Maybe he should also have promised to " establish a War & Injustice Commission. James Green and Another problem his Beard from Hell that I had with Green as a candidate was his beard. Now you probably haven't heard very much about the beard issue, because the candidates conspired to keep it out of the press. As a voter, I demand to know why James Green grew such a repulsive beard. Maybe it's meant as other bearded activists, a sc damages his credibility. I w~ listen to him speak, trying 1 message, but the only thing played in "Planet of the Ap Emphasizing Stud Motto: "A stupid acron all." Traditionally, third part elections. But this year, wit with both the right (CC) an ESP's most logical strategy themselves as a moderate a being MSA, ESP did not d debate, ESP's candidate, E moderate! That's a label th forbid we should have an N drooling maniac. Scruffy the Bowii A cabal of survivors fror party protested the ineptiti launching a campaign to w Unfortunately the Scruffy disorganization, indecisiver got off the ground. Maybe Anti-imperialist A AIAC (actually the RW Weekend columnists have winning. One of AIAC's planks i, police officers and replacin militias whose sole purpose racist attacks." I think that under this plan. I can see it "Hello, police?" "No, this is the People' Revolutionary Defense Mi "Yes, my house is being squad car over!" "Would you describe th "Well, no, but..." [Click. Some Free Advice on Being Wined and Dined by Friends' Families Being an out-of-stater myself, I find that I often get invited to the homes of friends for holidays, weekends, and dinners. This is very nice because my friends offer me the opportunity to experience the family and homey type of atmosphere that I don't get to enjoy much anymore. Of course, I'm only in it for the free grub. But being a veteran "guest," I thought it might be helpful to share some of my insights and perhaps offer some advice for young aspiring "guests." First, I would suggest trying to find a German family to adopt you. "Why?" you might ask. Because they drink like fish. Take my roommate Schooner's house for example. I've been over to his house for the last three Thanksgivings. Perhaps I was just lucky to have a roommate who happens to be German. His family really gets into the festivities of drinking, although one couldn't tell from the Budweiser glasses, the fully stocked bar, and the dog named Schnapps (no lie). A typical Thanksgiving starts with a pair of Bloody Mary's (complete with healthy celery stalks), which are followed by eggnog. Then the family settles in for rounds of beers. About this time is when either Schooner's mom or dad says, "So how about some breakfast?" To me, Thanksgiving now means one great buzz instead of all that being gracious and Pilgrim-Indian stuff. Of course, I do have to study up on my drinking before I go. I mean, these good folks don't mess around. For example, just this past Thanksgiving, I was asked what I would like to drink before dinner and I answered confidently, having perused my UAC bartending course drink list. "Well, how about a stinger?" I asked with my head held high. I was surprised when I was met with gasps of shock, and a heavy silence fell upon the house as if the last word out of my mouth were: "...and EF Hutton said..." The silence was finally broken by the sound of a lime garnish being dropped on the counter by Schooner's mom. She then said, "A stinger before dinner?" I'd made the crucial mistake of an amateur drinker. I know, you're thinking, "What an idiot!!! Two liquor cocktails are for after dinner!!!" I was saved, however, when Schooner's dad said, 'There's nothing wrong with that if that's what he wants," thus invoking the "Guest is never wrong" rule, which states that "the guest is never wrong unless he/she is a supreme ass." This is a very powerful rule, but it can only be employed by tolerant hosts and not by the guests. There are limits. Another tip would be to choose a family where all the kids have gone away. If tl usually so glad to have ye will prepare a feast so big offensive line was coming last invited to such a hour me in advance if it would dinner. I guess they figur and ramen noodles that t shock my system and sen It's so nice when peop However, there are occas overabundance of food.' at an Italian household. I you eat until you're in pa worse, as the trait increas two theories on why they enjoy seeing young peop satisfaction.knowing that personally think, there is Italian-American Club fo by one household." Man' refuse the offer to gorge 1 too many movies about ti that the hosts know peop Weasel or Omar the Crov So when you decide t German family for drinks home family if you want have youngsters at home Also, remember that you never wrong" rule, but d over that annoying family all day. Sources: Havard Univ. Dept. of Anthropology; AMA Home MedicalEncyckipedia AP/Pat Lyons March 29, 1991 WEEKEND Page 4 Page 9 WEEKEND NV