Darwin’s year: time to reflect
By Q. Isa Daudpota
CHARLES Darwin was kind enough to publish his great work On the Origin of Species when he was exactly 50 years old. That will allow us to celebrate his 200th birthday anniversary and the sesquicentennial of the book this year.
His work’s scientific, philosophical and social implications are revolutionary. Today all true scientists accept his theory of evolution as fundamental to the understanding of life on earth. It underpins all modern biological and medical sciences and helps view life as a unified system based on rather simple yet profound rules.
The biggest ever Charles Darwin exhibition (www.tinyurl.com/aysymz) will run until mid April in London. Not all is lost if you cannot get to it as much exists on the Internet that can help remove the misconceptions that many Pakistanis have about the theory, starting with this website and its excellent links. Several new books will appear as will documentaries and TV programmes that will reach our shores if there is enough demand.
Among the important recent audio-visual presentations worth showing in Pakistan is the seven-part TV series Evolution prepared by the US Public Broadcasting Service. The accompanying book with the same title by Carl Zimmer is also useful for a better understanding of the theory. Supplement these with a study of the PBS website on evolution (www.tinyurl.com/783wm8) which has a wealth of material, in text and video, for students and teachers.
What if one wants to visit one of our own museums to learn about evolution? One would naturally turn to our Museum of Natural History in Islamabad. I, in fact, visited it about four years ago when asked to review the design of a planned extension to the building. Sadly the building, set in the idyllic green surroundings of the Shakarparian hills, is poorly designed and constructed.
During the visit I walked to the lowest level. This is where the museum explicitly shows how the evolution of life took place on earth. You enter the moderately sized room with its four walls painted to show quite nicely the story of life. Starting on the right one sees in almost seamless progression the appearance of primitive life forms in water, moving on to fish, reptiles, amphibians, land-based animals, primates and then early humanoids, the hunter-gatherers, finally getting to modern humans. This brings one back to the door where one began the journey. If you stand in the middle and turn around you see the panorama of life before you. A good teacher of biology could keep a class occupied for several hours in this room alone.
One wonders how many teachers in Pakistan would, however, notice the white pillar from floor to roof, over one foot wide, that separates the pictures of the hordes of apes from the hunting humanoids. (Nowhere else in this room are the different life forms shown separated from other groups.) More importantly, will the teacher on noticing this anomaly, point it to the students and discuss it? A clear discussion on this issue alone could lead to a much better understanding of biology (and life generally) than a year of learning facts that fail to unify the subject.
I gathered a number of museum staff nearby to ask their opinion about why the museum chose to separate the apes from the humanoids, given that after Darwin it was generally accepted that human are primates, i.e. closely related to monkeys and apes. Most remained quiet. One said, in true bureaucratic fashion, that I would need to contact the director who designed the room. Another said that if the connection was shown the museum would be burned down by religious fanatics. The museum’s stagnant website, perhaps reflecting this attitude, has no mention of Darwin or evolution. Instead, it should be the main institute explaining and displaying artifacts of natural history on the foundations laid by scientific Darwinian ideas.
Then there are people like Harun Yahya, the prolific Turkish writer, whose slick books fill our bookshops and unambiguously oppose Darwin. I once saw a room full of talented Pakistani school students at a space camp being shown a movie about creationism produced by Yahya’s outfit. This phenomenon is not particular to Pakistan or the Muslim world. In America about 55 per cent of adults held a tentative view about evolution for the last decade. A third of adults firmly rejected the theory; only 14 per cent thought of it as ‘definitely true’. Only scientific education, formal and informal, can overcome this bias. Nature, the premier science magazine, offers 15 examples (www.tinyurl.com/a3n4nh) from over the past decade or so to illustrate the breadth, depth and power of evolutionary thinking that poses a serious challenge to ideas of people like Yahya.
For the Semitic religions to have relevance in today’s modern world, there has to be acceptance that the rules of nature apply to materials, bodies, energy and the environment, and explain the creation of the immense variety of species and their evolution. That they may arise from a single or a small number of basic primal organisms and transform due to mutations and natural selection was explained thoroughly by Darwin.
Darwin and his great work provided a revolutionary break from the past by placing humans as part of the evolving flux of life. He did what Copernicus managed in the 16th century by displacing Earth from its central position in the universe to being a mere planet moving around a rather ordinary star obeying physical laws that were formalised later by Newton. It should have taught us modesty.
Darwin is right up there with Newton in the greatness league. He, unlike his fellow Englishman, was a wise, modest gentleman. A befitting tribute to Darwin in this anniversary year would be a greater understanding of his ideas and perhaps this could lead to revolutionary changes in our own thinking.
The author is a physicist and environmentalist.


‘Designer babies’ raise ethical questions
By Ben Quinn
THE birth of the first British baby genetically screened before conception to be free of a breast cancer gene was hailed on Thursday as a breakthrough by doctors but raised fresh questions about the ethics of creating so-called designer babies.
The baby girl grew from an embryo screened to ensure that it did not contain the faulty BRCA1 gene, which would have meant she had a 50-85 per cent of developing breast cancer. While mother and daughter were said by a spokesman at University College hospital, London, to be doing “very well” following the birth last week, medical experts and those involved in cancer research were considering the implications.
Paul Serhal, medical director of the assisted conception unit at the hospital, said: “This little girl will not face the spectre of developing this genetic form of breast cancer or ovarian cancer in her adult life.”
In June the mother, then 27, told how she decided to undergo the screening process after seeing all her husband’s female relatives suffer the disease. The woman, who wanted to remain anonymous, said at the time: “We felt that, if there was a possibility of eliminating this for our children, then that was a route we had to go down.”
The technique, pre-implantation genetic diagnosis (PGD), has already been used in the UK to free babies of inherited disorders such as cystic fibrosis and Huntington’s disease. But breast cancer is different because it does not inevitably affect a child from birth.
Permission to carry out PGD for breast cancer had to be obtained from the Human Fertilisation and Embryology Authority by the London clinic which performed the procedure.
Dr Sarah Cant, policy manager at Breakthrough Breast Cancer, said the decision to screen embryos to see whether they have a faulty breast cancer gene was a complex and very personal issue. Kath McLachlan, a clinical nurse specialist at the charity Breast Cancer Care, said it would give those carrying the faulty BRCA1 gene “another option” to consider when starting a family.
She said: “While the selection of an embryo through PGD can reduce a person’s risk of developing breast cancer, the procedure cannot prevent a non-genetic form of the disease in later life.”
Doctors at the private clinic at University College hospital conducted tests on 11 embryos by removing just one cell from each when they were three days old. Six embryos were found to carry the defective BRCA1 gene. Two embryos which were free of the gene were implanted, resulting in a single pregnancy. Faulty genes are responsible for between 5 per cent and 10 per cent of the 44,000 cases of breast cancer that occur in the UK each year.
As the debate about the ethics involved in the procedure was renewed, the main objection from critics remains the charge that it opens the door to the creation of babies for parents who may want their offspring to be top of the class, excel in sport, and have hair, eyes and other physical characteristics that into a particular family’s wish list.
— The Guardian, London


