Teaser Appetizer: Super Bugs

by Shiban Ganju

Super bugs excel in defying therapy just like super star Britney. Though antibiotic resistant bugs or ‘super bugs’ thrived before the super stars, yet unlike them they lay unnoticed – that is, till recently.

Microbes inhabited this planet long before humans. They were already experts in the game of ‘natural selection’ – an evolutionary survival strategy – before we learned the game of antibiotic attack. Microbes, like other organisms, mutate genetically and they do it often because they multiply fast – sometimes with a gap of only 15 minutes between generations. One random mutation would bestow the luck of antibiotic resistance.

When we vanquish the vulnerable microbes with an onslaught of antibiotics, the resistant mutated bugs thrive and proliferate with impunity. It is not that the bacteria ‘acquire’ resistance but the mutated bacteria have a survival advantage over the non-mutated bacteria. And that is evolution in action.

Bacteria interfere with the antibiotic action by altering themselves. For example, penicillin disrupts the cell wall of susceptible bacteria; the resistant microbes modify the structure of the cell wall so penicillin cannot bind to it.

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Bacteria may mutate naturally to evolve such resistance, but more sinister is the way of the plasmid – a small circle of DNA, which can move between bacteria conferring resistance. A single altered plasmid can cause havoc. Over 12,000 people died of diarrhea in Guatemala in 1968 due to a strain of Shigella, which carried a plasmid resistant to four antibiotics.

The first super bug to exhibit antibiotic resistance was Staphylococcus aureus (SA), which often lives on our skin and inside our noses but can also inflict serious infections like boils, abscesses and toxic shock. The resistant variant of SA declared its existence just a few years after the mass production of penicillin in 1943. (Alexander Fleming, the discoverer of penicillin had forewarned this a few years earlier.) Trying to be one up, we invented methicillin to banish SA, which in its turn evolved into MRSA – methicillin resistant staphylococcal aureus. When we shot more antibiotics in vengeance against SA, unscathed MRSA proliferated. CDC claims that in 1974 only 2% SA infections was due to MRSA; by 1995 it was 22% and in 2004 it was 63%. Now MRSA is endemic in health care institutions and has made inroads into normal healthy population also. But we have hope in vancomycin – a drug of last resort for many infections, which is still lethal against MRSA. What will happen if MRSA becomes resistant to vancomycin?

One group of bacteria – enterococci, which reside in the normal intestines – has already rapidly turned resistant to vancomycin in the past 20 years. No vancomycin resistant enterococcus was reported in the US before 1989. What if this resistance is transmitted to MRSA? ‘Alarming’ is what some have called this scenario. The first two cases of vancomycin resistant SA were reported in 2002 from Michigan and Pennsylvania and the a third one, in 2004, from New York. Some more have been reported since. The crisis has just begun.

All microbes have potential to develop resistance to any antibiotic, any where in the world. Tuberculosis, malaria, ear infections are now less susceptible to old antibiotics. Another super bug, Streptococcus pneumoniae, a pneumonia-causing microbe, first exhibited its resistance to penicillin in 1967 in Papua New Guinea. Up to 1987 only 0.02 % of the strains of this bug were penicillin resistant, but by 1994, CDC reported it had climbed to 6.6%. In Hungary it got even worse: by 1976 more than 50% strains of this bug turned resistant because of unabashed use of penicillin in the prior decade.

Consider Japan: between 1953 and 1965, Shigella – a dysentery provoking bug – escalated its population resistant to streptomycin, tetracycline, sulfanilamide and chloramphenicol, from 0.2% to 58%.

The super bugs became ‘globalized’ much before we did. Southeast Asia exported its new strain of penicillin resistant gonorrhea bug to the USA when American soldiers returned home by 1976 carrying the bug with them

(Many centuries ago, syphilis had traveled in reverse direction on ships)

By now, globalization of infectious diseases is not a headline grabbing news. Antibiotic resistant bugs erupt frequently in remote parts of the world and travel to distant locations. That is because we have gone antibiotic crazy!

We shower our agriculture with ten times and stuff our animals with thirty times more antibiotics than we consume as humans. It is estimated, that we inundate the planet with 100 to 180 million kilos of antibiotics every year, which is probably enough for 25 billion courses of full treatment for every human four times a year.

We have reached a stage, where – if you watched TV lately – super bugs have replaced superstars at prime time. But there is a difference between a super bug and Britney Spears: she is merely self-destructive.

About 90,000 patients die every year in the USA of infections acquired in the hospitals and 70% of these microbes are resistant to at least one antibiotic. Our response: newer, more expensive, perhaps more toxic antibiotics and longer hospital stay.

We are lucky; this problem is not amenable to bipartisan-republican-democratic health care reform or we will never find a solution. Wisdom supplementing our scientific knowledge can control the crisis.

* Doctors should not prescribe antibiotics unless absolutely needed and should attempt to prescribe a specific antibiotic for the suspected pathogen as opposed to a ‘broad spectrum’ antibiotic, which targets many pathogens. A survey by the National Center for Health Statistics showed that the prescription of ‘broad spectrum’ antibiotics has increased even though the number of prescription has not.

* Parents should not demand antibiotics for their children. One study showed that doctors prescribe antibiotics five times more often, if they feel that the parents expect them. Indiscriminate use of antibiotics has made children the commonest target of resistant pathogens.

* Hospitals should have better internal surveillance systems and linkages with the other public health institutions. We really don’t have a grip on emerging resistance in the world. International reporting system and surveillance needs cooperation between nations

* Health care workers in hospitals should wash their hands between touching patients. This has been proven to be the single most effective way of controlling transmission in the hospitals.

* We need to curtail excessive antibiotic use in animals.

* Pharmaceutical companies need to build a pipeline of dugs against evolving infection. We were complacent 20 years ago, thinking that we had conquered infections and did not pursue the development of antimicrobials with vigor. In the mean time resistant pathogens multiplied and we have no drugs to counter some of them.

* Scientists need to look at new ways of handling infections: probiotics to build normal flora which can suppress the pathogens; phages which are pathogen specific and not broad spectrum like antibiotics; drugs that target molecules on bacteria to rener them ineffective without killing them; and above all prophylactic vaccines.

While we are pondering and planning, there is profit to be made. Gadget peddlers are cashing on the frenzy of fear – real and perceived.

Here are some products: special hand soaps like hands2go; nose cleaner – nasopore nasal wash; personalized ‘life saver’ pacifier for the kids and silver and copper dressings for wounds. Then there are special cleaning services that are ready to rush their swat teams to debug your office!

With recent flurry in the media, the time is right to capture public attention. We need ‘super star’ power to educate people. I vote for Britney; she will be a perfect model to tout these gadgets and be an ambassador for a campaign against super bugs. She personifies the destructive power of resistance to therapy.



Sunday, December 9, 2007

Experimental Philosophy

Kwame Anthony Appiah in the NYT Magazine:

Philosophers don’t observe; we don’t experiment; we don’t measure; and we don’t count. We reflect. We love nothing more than our “thought experiments,” but the key word there is thought. As the president of one of philosophy’s more illustrious professional associations, the Aristotelian Society, said a few years ago, “If anything can be pursued in an armchair, philosophy can.”

But now a restive contingent of our tribe is convinced that it can shed light on traditional philosophical problems by going out and gathering information about what people actually think and say about our thought experiments. The newborn movement (“x-phi” to its younger practitioners) has come trailing blogs of glory, not to mention Web sites, special journal issues and panels at the annual meeting of the American Philosophical Association. At the University of California at San Diego and the University of Arizona, students and faculty members have set up what they call Experimental Philosophy Laboratories, while Indiana University now specializes with its Experimental Epistemology Laboratory. Neurology has been enlisted, too. More and more, you hear about philosophy grad students who are teaching themselves how to read f.M.R.I. brain scans in order to try to figure out what’s going on when people contemplate moral quandaries. (Which decisions seem to arise from cool calculation? Which decisions seem to involve amygdala-associated emotion?) The publisher Springer is starting a new journal called Neuroethics, which, pointedly, is about not just what ethics has to say about neurology but also what neurology has to say about ethics. (Have you noticed that neuro- has become the new nano-?) In online discussion groups, grad students confer about which philosophy programs are “experimentally friendly” the way, in the 1970s, they might have conferred about which programs were welcoming toward homosexuals, or Heideggerians. Oh, and earlier this fall, a music video of an “Experimental Philosophy Anthem” was posted on YouTube. It shows an armchair being torched.

stockhausen (1928-2007)

Stockhausen

Karlheinz Stockhausen, whose innovative electronic works made him one of the most important composers of the postwar era, has died at age 79.

Stockhausen, who gained fame through his avant-garde works in the 1960s and ’70s and later moved into composing works for huge theaters and other projects, died Wednesday, Germany’s Music Academy said, citing members of his family. No cause of death was given.

He is known for his electronic compositions that are a radical departure from musical tradition and incorporate influences as varied as the visual arts, the acoustics of a particular concert hall, and psychology.

more from the NY Sun here.

post-ironic monuments

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With all the ‘boundary-blurring’ going on in contemporary art, the old distinction between art and craft ought to be history. But snobbism is apparently so hard-wired into our aesthetic psyche that the distinction has managed to survive by appealing to the Wildean doctrine, ‘All art is quite useless.’ If something has a use, the theory seems to go, it isn’t art: if it’s useless, it’s in with a chance.

The new Middlesbrough Institute of Modern Art — mima for short — set out with a mission to show arts and crafts under the same roof. Its reasons are historic: its snazzy new glass-fronted building unites the collections of the former Cleveland Crafts Centre and Middlesbrough Art Gallery. So a show about the Bauhaus, not seen in Britain since the Royal Academy’s survey of 1968, seemed an obvious choice for its first year’s exhibition programme.

more from The Spectator here.

uae comes to film

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The cinema at the Grand Abu Dhabi Mall, in the capital of the United Arab Emirates, offers a choice of eight films. Six of them are Hollywood blockbusters such as Ridley Scott’s American Gangster. The city’s large Indian expatriate community may be tempted to see a Bollywood musical called Aaja Nachle. The only Arab-language film showing is Khiyana Mashrooa, a crime thriller out of Cairo. None of these films can be said to reflect the sensibilities of the UAE. That’s because the UAE has no indigenous film culture to speak of. That is about to change.

more from The Observer Review here.

A plague on all our houses

PD Smith is gripped by Deadly Companions, Dorothy H Crawford’s fascinating study of man’s mortal combat with microbes.

From The Guardian:

DeadlycomYersinia pestis, the bacterium responsible for bubonic plague, is named after the Swiss microbiologist Alexander Yersin, who first identified it just over a hundred years ago. A relatively recent microbe in evolutionary terms, it spreads to humans via fleas that have gorged themselves on the infected blood of rats. Unless they have the universally fatal pneumonic version, plague victims themselves are not contagious. However, many people who experienced the Black Death in the 14th century were convinced it spread person-to-person. And strangely for a disease that also kills rats, not one eyewitness mentions seeing dead rats.

In a chapter of her fascinating study of the microbes that plague and sometimes aid us, microbiologist Dorothy Crawford asks whether the Eyam villagers really did die of bubonic plague. Records suggest that their disease was contagious. There is also the question of why isolation worked; after all, rats don’t obey quarantine. Some even doubt whether the black rats that carried the microbe could have survived in the cold climate of northern Europe. Indeed, rat fleas require a minimum temperature of 18C for their breeding cycles. Furthermore, the Black Death killed between 30% and 70% of the population, which far exceeds recent outbreaks that killed only 2%.

So which microbe did cause the Black Death, a disease that wiped out a third of England’s population in three years and killed 25 million people worldwide?

More here.

Do we need a literary canon?

Richard Jenkyns in Prospect Magazine:

Essay_jenkyns We live in a world without heroes. The one exception is Nelson Mandela, and his canonisation testifies to the void which he helps to fill. The middle of the last century saw men such as Churchill, Mao and De Gaulle who, for better or worse, were big figures. Two decades ago there were leaders like Thatcher, Gorbachev and again Mandela. Today, on the other hand, it appears that not one of the nearly 200 nations of the world is led by a person of truly exceptional quality. Perhaps we are fortunate to live in an age that calls for technocrats rather than titans, but something has been lost.

We lack cultural heroes, too. Isaiah Berlin used to say in his last years that there were no geniuses left in the world: no great novelists, poets, painters or composers. That judgement may or may not be true, but it surely expresses a general perception. On the surface there is a good deal of chatter about young British artists or brilliant novelists and filmmakers, but deep down we feel that nothing very large is coming to birth. Architecture is the main counter-example: Santiago Calatrava seems to me clearly a genius, Frank Gehry may be, and perhaps there are others. But architects are less crushed by the burden of the past than artists in other fields: modern technology opens up to them forms of expressive possibility unknown to earlier generations. Writers and painters do not share this advantage. I remember in the 1970s a distinguished person passing the Listener to me and saying, about The Old Fools, “There is a poem that will last for 500 years”: it was Philip Larkin’s latest. It is a sentence that one cannot easily imagine being spoken today. The present standard of musical performance, by contrast, is astonishingly high, but it is significant, again, that the best interpreters of our time receive the kind of veneration that used to go to composers: it reveals an absence.

More here.

A DNA-DRIVEN WORLD: THE 32ND RICHARD DIMBLEBY LECTURE by Dr. J Craig Venter

From Edge:

Venter_2 I have called this lecture ‘A DNA-Driven World’, because I believe that the future of our society relies at least in part on our understanding of biology and the molecules of life – DNA.  Every era is defined by its technologies.  The last century could be termed the nuclear age, and I propose that the century ahead will be fundamentally shaped by advances in biology and my field of genomics, which is the study of the complete genetic make-up of a species. Our planet is facing almost insurmountable problems, problems that governments on their own clearly can’t fix.  In order to survive, we need a scientifically literate society willing and able to embrace change – because our ability to provide life’s essentials of food, water, shelter and energy for an expanding human population will require major advances in science and technology. 

In this lecture I will argue that the future of life depends not only in our ability to understand and use DNA, but also, perhaps in creating new synthetic life forms, that is, life which is forged not by Darwinian evolution but created by human intelligence. To some this may be troubling, but part of the problem we face with scientific advancement, is the fear of the unknown – fear that often leads to rejection.

More here.

Saturday, December 8, 2007

The Theremin Lives On

In Moscow News (for Roop):

Finding something cool to do in Moscow at no cost is a near impossible feat. But on the fourth floor of a dingy house, one of the several buildings that make up the Moscow State Conservatory, something awe-inspiring and magical happens every Friday: theremin-playing lessons are given for free, and last up to three hours at a time.

Yes, you read the name right. Invented by and named after the prodigious Leon Theremin, the thereminvox consists of a flat box containing layers of transistors and chips, and two antennas: one shaped like a hoop, protruding from the left with its openings facing the ceiling and floor, and the other a slim metal rod, pointing up. To produce sound, physical contact with the instrument isn’t required. The antennas act as sensors, detecting positioning of the hands: the hoop controls volume (the hand glides up and down an imaginary vertical axis. The lower, the quieter), and the rod is in charge of the pitch (here the imaginary path becomes a horizontal plane – the further back the hand moves, the lower the pitch becomes).

Here’s the Theremin substituting for Gnarls Barkley on a cover of Crazy.

the romanians

Otiliaatdoor

Revolutions in the cinema seldom need the masses. Four or five names usually suffice; they come together when the benevolent film god focusses on a particular place at a particular time and in a blinking of an eye the screen world is a new one. In the late fifties of the last century a few prominent French film critics decided to try out things behind the camera and bada bing, the Nouvelle Vague was born. In the mid-nineties a few boisterous Danes wrote a seemingly ascetic manifesto and suddenly all other films looked like they were under a thick layer of dust compared with the Dogma productions. For a decade now the clear, stringent language of a handful of German directors has challenged the ubiquitous noise cinema and by now they are happy to be counted as part of the prestigious “Berlin School”, a name they didn’t coin for themselves.

Sometimes it is a central aesthetic concept which unites these small groups of extreme individualists; sometimes it’s the weight of historical circumstance. The handful of Romanian directors who are now causing a stir in international auteur cinema, belong to a generation of 30 and 40-somethings who grew up under Ceaucescu but were not broken by him.

more from Sign and Sight here.

poetry from the so-called Other Europe

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Herbert has been celebrated as “a conscience and spokesman for the Polish nation” (Robert Hass), “a moral authority” (A. Alvarez), and “a complete poet” (Marius Kociejowski). By and large, his ironic, erudite, parabolic verse, with its allegorical insistence on historical recurrence and its self-conscious sublimation of private experience to public idea, continues to define our imagination of Polish poetry.

This was already the case well over twenty years ago, when readers in the United States and Britain could still believe that only governments on the other side of the Iron Curtain would eavesdrop on telephone calls, censor the media, flout international law, or torture political prisoners. Back then, the consensus also seemed to be that capitalist democracy, despite its attendant freedoms, leached the relevance from intellectual and artistic work. Consequently, many writers in the West came to look with curiosity, if not envy, toward their counterparts, who were presumed to have it better spiritually and morally. True, the Eastern European poets demonstrated clarity of voice and vision in the face of calamity and decrepitude. And in the ’60s, when their work first started to appear in English, readers here were justifiably excited, not only because they now had access to otherwise barricaded realities, but because this newly translated work—with its lucid perspectives and political relevance—marked a welcome reinvigoration of the lyric.

more from Boston Review here.

Slavery and African Underdevelopment

I’d posted on Nathan Nunn’s research a few years ago. Over at Vox, Nunn provides a brief and non-technical version of his claims:

According to my calculations, if the slave trades had not occurred, then 72% of the average income gap between Africa and the rest of the world would not exist today, and 99% of the income gap between Africa and the rest of the underdeveloped world would not exist. In terms of economic development, Africa would not look any different from the other developing countries in the world.

This finding is striking. These results may not be the final and definitive explanation for the origins of Africa’s severe underdevelopment, but they do provide very strong evidence that much of Africa’s poor performance can be explained by its history, which is characterised by over 400 years of slave raiding.

[H/t: Alex Cooley]

lowry: between the eternals and the quacks

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Malcolm Lowry wrote one great book; the rest was miscellany. Before we get to the (freshly collected) miscellany, a word about the one great book. Single-masterpiece authors tend to divide into two camps: the Eternals (Cervantes, Sterne, Melville), or the world-historical quacks who pack everything into a single, unyielding wallop; and the Eternal Adolescents (De Quincey, Kerouac, Exley), or burnout cases who pull it together to manufacture a cult classic. It was Lowry’s fate to fall right in between the two. Coming of age a half-generation after “Ulysses,” the British-born, Cambridge-educated Lowry wanted to produce not just a novel but a cosmos-surfing, cosmos-swallowing book of books. “Under the Volcano” takes place in a demi-Joycean 12 hours, on the feast of the Day of the Dead in Mexico, and took Lowry a Joycean 10 years to fully emit. No one would ever call it underdone. Following the last hours in the life of a British dipsomaniac, “Under the Volcano” embraces everything from Dante to Freud to the cabala. Here it shambles like Cervantes, there it rages like Ahab, and every page of it pulsates on Out of Body Auto-Reply, that style of pure Lowry that points at once backward, to all European literature, and forward, to the mother of all nervous breakdowns.

more from the NY Times Book Review here.

Charles Taylor’s A Secular Age

Stuart Jeffries over at the Guardian:

Taylor hints obligingly at a time in which secularism’s “hegemony of the mainstream master narrative” could be over (a great elucidator of Hegel, Taylor doesn’t so much turn a phrase as let it curdle in philosophical jargon). They will also no doubt like the fact that Taylor is highly critical of so-called “subtraction stories”, those Whig versions of secularism’s history, whereby human nature steadily casts off its shackles of ignorance and superstition, finally emerging from a Bastille of the mind into the bright morning of truth.

Taylor’s account is much more complicated. There is chronology, but hardly a straightforward narrative that might explain why the only recent bestseller about religion was written by a vituperative atheist. One might think that the cumulative impact of the Reformation, Renaissance, Enlightenment and myriad scientific revolutions was to make it possible to think about the material world without reference to any transcendent power (Taylor calls this the “immanent frame”), but that is not the whole story. He argues that the west has been changed by what he calls a “nova effect”: once a humanistic alternative to the transcendent frame established itself, it spawned an ever-widening variety of moral and spiritual positions, in the professor’s words, “across the span of the thinkable and perhaps even beyond”.

Progaganda Then And Now: What Orwell Did and Didn’t Know

Over at Live at the NYPL, videos of the NYPL’s conference on language, politics, and propaganda with Konstanty Gebert, Masha Gessen, Jack Miles and George Soros (Orville Schell moderates).

On the 60th anniversary of Orwell’s Politics and the English Language, George Orwell described political speech as consisting “largely of euphemism, question-begging and sheer cloudy vagueness.” Some six decades later, many symptoms of manipulation and propaganda diagnosed by Orwell persist on the American political landscape, along with new disinformation techniques enabled by modern technology.

Part II, on the Science of Manipulation, features George Lakoff, Frank Luntz, and Drew Westen. Part III, on The Future Political Landscape, features Michael J. Copps, Charlayne Hunter-Gault, Josh Marshall, and Alessandra Stanley.

Morgan Meis Meditates on Miami’s Art Basel

Over at the Smart Set, his report on Day 1:

Art Basel Miami bills itself as the “most important art show in the United States.” You can read in The Art Newspaper, Art Basel’s daily rag, that Sam Keller, Director of Art Basel “has recreated what we used to call the World’s Fairs, at their height of success between 1850 and 1940.” This is an interesting point, if unintentionally so. The great era of the World’s Fairs was an era of populism and the celebration of the democratization of technology and the fruits of industry. But there was a certain blindness to this celebration, as there is, perhaps, in every celebration. The democratization of technology in the World’s Fair era was also its domestication and, inevitably, the beginning of its disenchantment. That is the thing with democratization. Everything gets opened up. Everything becomes available. But then we aren’t sure if we really want it anymore. The same ambivalence surely applies to art fairs.

And yet you wouldn’t want to close it up again. You wouldn’t want to de-democratize anything. The art world, the art market, is too big with too many people doing too many things. Miami embodies that right now. Too much — too much money, too much desire, too much art. But the alternative to “too much” is rarely, if ever, “just enough.” It is usually “too little.” The trick in Miami during Art Basel, I suspect, is to learn to swim around in the terrible current and find a few things among the chaos of toomuchness.

The gene that makes us once bitten, twice shy

From Nature:

News2007 Most people tend to learn from their mistakes and avoid making the same blunder twice. Now research reveals a genetic mutation that helps to determine the extent to which certain people are doomed to repeat history.

Drug addicts, alcoholics and compulsive gamblers are known to be more likely than other people to have this genetic mutation, which leaves them with fewer receptors of a certain type in the brain. These receptors — called D2 receptors — are activated when levels of the neurotransmitter dopamine drop. Dopamine is responsible for signalling fun and pleasure in the brain. But dopamine also helps us learn. When we make a pleasurable decision, dopamine is a chemical treat, urging the brain to repeat the choice. Being deprived of such a treat should theoretically activate D2 receptors and encourage people not to make that same decision again.

So it had been theorized that people with fewer D2 receptors might be less capable of learning from negative reinforcement.

More here.

The Fixer-Upper

From The New York Times:

Bernard Malamud: A Writer’s Life by Philip Davis.

Siegel190 A curious passage occurs in “My Father Is a Book,” Janna Malamud Smith’s tender, touching 2006 memoir of her father, Bernard Malamud. In the spring of 1978, when the novelist was in his mid-60s, he and his wife, Ann, had dinner with Philip Roth and Claire Bloom in the latter couple’s London apartment. In a letter to his daughter describing the visit, Malamud affectionately characterizes Claire Bloom — “absolutely unpretentious” — and then, in parentheses, adds this detail about greeting Roth: “We kissed on the lips when I came in. He couldn’t have done that two years ago.” Now wait a minute.

Is this the Philip Roth who by then had put the id into Yid, the writer who had turned Freud’s three elements of the psyche into the Flying Karamazov Brothers? And is the letter writer the Bernard Malamud known for his themes of redemption through suffering, of the burden of conscience that weighs down even the artist-hero? Is it this Bernard Malamud, the creator of the Christlike Jewish store owner, Morris Bober, and also of Arthur Fidelman, a hapless painter forced to choose between the gross imperfection of his life and the complete bollixing of his work, between Fidelman’s mostly fruitless attempts to make a woman and his mostly futile efforts to make art?

By presenting himself as liberated and Roth as repressed, Malamud — who died in 1986 — may well have been taking imaginative revenge on a younger rival. Roth, after all, had at one time publicly scolded Malamud for being narrowly moral and uptight. As Philip Davis recalls in his wise, scrupulous, resolutely admiring biography, “Bernard Malamud: A Writer’s Life,” in 1974 Roth had contributed a long reflection called “Imagining Jews” to The New York Review of Books in which he disparaged what he regarded as the “stern morality” of Malamud’s second novel, “The Assistant.” In the letter to his daughter, Malamud goes on to surmise that Roth “sought” the kiss “to signify I had forgiven him for the foolish egoistic essay he had written about my work.”

More here.

Friday, December 7, 2007

Dolphins Woo with Weeds and Show Signs of Culture

Over at the Telegraph (via news@nature):

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A new study shows that male dolphins carry pieces of plants and twigs to impress females, rather than simply playful behaviour as previously believed.

Object-carrying as part of sexual display is rare in the animal kingdom, with only humans and chimpanzees doing anything similar.

The fact that the habit has been observed in isolated populations of dolphins in river dolphins in Brazil, Venezuela and Bolivia suggests it has either been passed on through generations or evolved separately in different groups.

The discovery could provide proof of the existence of dolphin culture – defined as a non-hereditary, complex skill taught to some members of a population by others and passed down through generations.

Culture was until recently seen as a defining human characteristic not shared by other species.