F Rosa Rubicondior

Friday 1 August 2014

The Incredible Shrinking Dinosaurs

Dinosaurs shrank for 50 million years to become birds - life - 31 July 2014 - New Scientist

I was surprised and more than a little disappointed to to see the angle taken in the above article. It looks almost designed to supply a handy quote for quote-mining creationist pseudo-scientists to mislead their credulous victims with.

"No other dinosaur group has undergone such a long and extended period of miniaturisation," says Mike Lee of the South Australian Museum in Adelaide. "Statistically this trend was far stronger than by chance, analogous to flipping a coin a dozen times and getting all heads."

[...]

The analysis reveals that the ancestors of birds shrank without interruption. "What was impressive was the consistency of the size change along the dinosaur-to-bird transition, with every descendant smaller than its ancestor," says Lee.

It's not till we get to the final sentence in that last paragraph that we discover there is a simple and obvious answer and one moreover which illustrates how Natural Selection makes evolution non-random.

Thursday 31 July 2014

Origins Of The Exodus Myth


With so many to choose from, it's difficult to decide which of the various folk tales, invented 'histories' and origin myths that have found themselves bound up in the same book and presented as the inerrant word of an omnipotent god is the silliest, but one of them has to be the tale of Hebrew enslavement in Egypt and subsequent escape.

It was obviously written by someone who knew little or nothing of the geography or politics of the time and place the tale was set, so we have the idiotic notion of the 'Israelites' escaping from Egypt by crossing the Red Sea to Sinai - which was also in Egypt. That's like 'escaping' from the USA by crossing the Hudson River from New Jersey to Manhattan or escaping from the UK by crossing the Bristol channel from England to Wales. The author also has the 'slaves' building the Egyptian city of Raamses - which wasn't started until some 120 after the traditional date of the Exodus.

Killer Sperms Reinforce the Species Barrier

Killer sperm ravages internal organs of luckless worms - life - 30 July 2014 - New Scientist

I've mentioned before how, as two diverging nascent species each evolve specialisation, hybrids will often be at a disadvantage being good an neither of their parent's specialities. As isolated and diverged populations of finches came back together, at the end of the last Ice Age for example, one might have evolved a long thin beak for eating small seeds and the other a short stout beak for eating large hard seeds. A hybrid with a long stout beak or a short thin one would find feeding difficult so it would be in the interests of both sets of genes to set up barriers to interbreeding.

The very fact that they are diverging accelerates the process of speciation, not as an end in itself but to protect the advantageous genes from being wasted on hybrids which have a lower probability of passing them on (see Why Species?, Creationist's Macro-Evolution Lie and More Mimetic Evolution).

We now have a rather surprising, even shocking example of one such barrier in closely related nematode worms.

More Evolved Mimicry

This is my last blog for a while on the fascinating topic of mimicry in animals and plants. Previously I wrote about Batesian and Müllerian mimicry in Copycat Evolution and More Mimetic Evolution where a harmless species comes to resemble a harmful one and so gains protection from a predator which has learned to avoid the harmful one (Batesian), or two harmful species come to resemble one another and so gain from the evolutionary 'spade-work' of the other (Müllerian).

Now I'm going to look at another form of mimicry where (usually) a plant deceives another species into thinking it's something else, not to repel or avoid it, but to attract it. Almost invariably this improves pollen or spore distribution so it's not hard to understand how any improvement in this system gave the plant an advantage and so natural selection favoured it.

Tuesday 29 July 2014

Murmuring Starlings Do It Naturally.

Decisions ripple through flocks of birds like a wave - physics-math - 27 July 2014 - New Scientist

One of the most spectacular sites in nature in Britain is a winter 'murmuration' of starlings, and I'm fortunate enough to live just a short drive from the open stretch of moorland north of Oxford known as the Otmoor, now a wonderful RSPB-owned nature reserve and important inland wetland site, where this spectacle can be seen most winter evenings at sunset in suitable weather.

Watch these videos first, then I'll discuss them. The first was filmed over Otmoor, the second at Gretna in Scotland.

Monday 28 July 2014

More Mimetic Evolution

Having blogged a couple of days ago about the role of mimicry in evolution I decided to look more closely at the subject, especially the widespread mimicry found in butterflies. The results are fascinating.

But before I get on to that I'll just deal quickly with another aspect to evolution - speciation - following on from something I mentioned in the same blog. I pointed out how mimicry involved a two species both of which are prey to the same predator and where at least one of them is toxic or harmful to the predator.

I mentioned that the selection pressure for one species to become more and more like the harmful one depends on the presence of the predator in the local environment but the species range may well include areas with different predators, different comimics or indeed the absence of one or both. In this case, and in that part of the range there may be no selection pressure and no particular advantage in adopting the colour pattern of the toxic or harmful species, and there may even be a disadvantage because a different predator may not have any aversion to the mimicked colour.

Sunday 27 July 2014

Recent Evolution - That Old Chestnut

Horse chestnut leaves infested with Cameraria ohridella lavae.
If you live in Southern England, for an example of very recent evolution you probably only need walk to your nearest horse chestnut tree. I took this photograph near Sunningwell, Oxfordshire earlier on Saturday when we went out for a last distant look at Didcot Power Station, which is probably England's best-loved 'eyesore' but which is due to disappear in a cloud of dust in a few hours time. The chances are that by now your nearest horse chestnut tree will be becoming infested with the leaf-miner caterpillars of a moth which was unknown before 1985 when the first outbreak was recorded in Macedonia, Greece.

Since then, Cameraria ohridella has spread at an average of 60 Km per year across western Europe reaching England in 2002, where it is now widespread, causing the leaves of horse chestnut trees (Aesculus hippocastanum) to turn brown, wither and fall off by late summer. Devastating though this attack appears, the general health of the trees seems not to be unduly affected since they come back into leaf and grown normally the following spring.

Although this moth was a newly-discovered species in 1985, specimens of it were accidentally collected and pressed in botanical specimens as early as 1879 only to be rediscovered when a team of researchers carried out a systematic search of specimens stored in herbaria.

Abstract
Determining the native geographic range or origin of alien invasive species is crucial to developing invasive species management strategies.

Friday 25 July 2014

Copycat Evolution

Which ones would you pick up?
A friend asked me the other day to explain how mimicry can play a role in evolution. This is my attempt to do so.

There are in fact two main types of mimicry recognised by biologists, although the distinction is quite technical and is blurred anyway. For all practical purposes, they can both be regarded as forms of the same thing. They are known to biology as:

  • Batesian mimicry. Named after the English naturalist Henry Walter Bates. This is where a harmless species evolves to resemble a harmful species if it and the harmful species share a common predator.
  • Müllerian mimicry. Named after the German biologist Fritz Müller. This is where two harmful species evolve to resemble one another if they both share a common predator.

Thursday 24 July 2014

Evolution Arms Race - Moose Spit Detox

Ungulate saliva inhibits a grass–endophyte mutualism

A fascinating example of both evolutionary cooperation and an evolutionary arms race was published in Royal Society Biology Letters yesterday.

Abstract*

Fungal endophytes modify plant–herbivore interactions by producing toxic alkaloids that deter herbivory. However, studies have neglected the direct effects herbivores may have on endophytes. Antifungal properties and signalling effectors in herbivore saliva suggest that evolutionary pressures may select for animals

Wednesday 23 July 2014

Around the Bend with Ken Ham


2 January 2013: Astronomers have determined that the Milky Way may contain as many as 400 billion exoplanets, with almost every star hosting at least one planet.
"We'll find a new earth within 20 years" | Around the World with Ken Ham

Signs that Ken Ham may be beginning to panic at the thought that science could soon find evidence of life on another planet emerged recently with this desperate attempt to harness his fundamentalist audience in a bid to stop NASA looking for it, dismissing it as a waste of money which is bound to fail. His panic can be gauged from the horrible muddle he gets into with his argument where he inadvertently 'proves' that there isn't non-human life on Earth either.

He also showed his traditional propensity for making things up, even about the Bible, and relying on his ignorant audience not checking.

Monday 21 July 2014

The Sacred Conclusion

Most theists will deny that they do it but it's usually easy to demonstrate that religious beliefs are not based an objective assessment of the evidence but on a received conclusion which is then protected and reinforced by highly selective cherry-picking of the evidence which is often heavily weighted whilst contradictory evidence is minimised, ignored or dismissed on spurious grounds.

'Evidence' can even include assumed evidence such as that 'list of eyewitnesses of the life of Jesus', 'all those fulfilled prophecies in the Bible which have been independently verified', or, in the case in point, 'all the historical names, places and events' mentioned in the Bible.

Nothing wrong with these as examples of evidence, of course, apart from just one thing - they are all false. There are no authenticated eyewitness of the life of Jesus; there are no fulfilled prophecies in the Bible which can be independently verified and there are no historical names, places or events in the Bible which give it an authenticity as a holy book.

Thursday 17 July 2014

No Bread of Heaven for Creationism

Fiendish wheat genome reveals grain's history : Nature News & Comment

It's been another bad week for the Intelligent Design industry. No wonder their secretive five year 'Wedge Strategy' is now well into it's sixteenth year, during which the number of non-believers in the USA has gone up from about 4% to about 20%, conservative Christianity has become the preserve of the white right fringe and court after court has thrown out their attempts to subvert the Constitution and smuggle fundamentalist Christian extremism into the US public school system disguised as science.

Clearing Up the Unintelligent Designer's Mistakes

Hamilton O. Smith. (Photo: Jane Gitschier ©PLoS Genetics)
I'm homing in on the genetic essence of life - opinion - 14 July 2014 - New Scientist

In an interview published in New Scientist a few days ago, 1978 Nobel Laureate and synthetic biologist Hamilton O. Smith said:

The other thing we want to know is... how much can we rearrange the genes? Evolution has sloppily put them together. A lot of the cell's processes are scattered around. We're putting them together into one neat form.

He was explaining how his synthetic and bioengineering group at the J. Craig Venter Institute in La Jolla, California, USA is using the genome of a bacterium Mycoplasma mycoides to investigate the minimum number of genes needed to function as a viable, living organism.

Their greatest challenge is to work out exactly what DNA is junk, i.e., which has been included over billions of years but which now doesn't serve any purpose. Hamilton Smith estimates that it only needs 400-450 genes to make an organism viable. The other task is to rearrange these genes more efficiently instead of being scattered around the genome in the haphazard and 'sloppy' way they are in M. mycoides.

Wednesday 16 July 2014

Altruism and Tits

Long-tailed Tit (Aegithalos caudatus)
Browsing through my Royal Society for the Protection of Birds (RSPB) magazine, Nature's Home, just now I came across a reader's letter asking about something he had seen with nesting long-tailed tits recently. He had noticed that several adults were helping to feed the young in addition to the parents and wondered if this was normal.

It is. It is a lovely example of altruism in one of my favourite birds.

The so-called long-tailed tit - it's actually closer to the warbler family than the tits - is one of the UK's smallest bird. Were it not for it's long tail it would actually equal the size of our smallest two, the

Tuesday 15 July 2014

A Message From 270 Million Years Ago

Amphibians' swim stroke has lasted 270 million years - life - 15 July 2014 - New Scientist

Fascinating pictures of 270 million year-old fossils tracks from the Alps were published today, sadly most of them behind a paywall. They show the tracks laid down, probably by a salamander, as it paddled across a shelving patch of mud from shallow into deeper water and eventually taking to swimming. This is the first recorded instance of the transition from walking to swimming.

Abstract
Exceptionally preserved Early Permian tetrapod trackways from the Orobic Basin (Central–Western Southern Alps) offer a unique opportunity to investigate in detail locomotion in fossil vertebrates that lived on continental European landmasses. Herein are reported the results of a study on several tetrapod trackways that display a large variety of behavioral, gait and substrate related extramorphologies. They clearly document the transition from terrestrial–underwater walking to swimming and are assigned to the compound ichnotaxon Batrachichnus C Lunichnium. The use of the “C” symbol is here introduced for the first time as nomenclatural indication of a Compound trace. Producers were probably small-sized temnospondyl

Christmas Tree Tease for Creationists

The Norway spruce genome sequence and conifer genome evolution : Nature : Nature Publishing Group

Here's a fascinating piece of research from Sweden which is enough to give any self-respecting creationist pseudo-scientists a split personality. It shows how and why a Norwegian spruce (Picea abies a Christmas tree) has a much more extensive and complex genome than humans. I'll get to why it's a problem for creationists in a moment. Incidentally, thanks to Helmer von Helvete, a friend from Google+, for bringing this to my attention.

Abstract
Conifers have dominated forests for more than 200 million years and are of huge ecological and

Sunday 13 July 2014

Catholic Church "Untrustworthy"

The Catholic Church in Germany is witnessing an astonishing collapse in public trust and is haemorrhaging members at an unprecedented rate. According to a Forsa poll recently 65% of Germans said they found the Catholic Church untrustworthy.

This trend has been linked to the 'bling bishop' scandal in which Catholic Bishop Franz-Peter Tebartz-van Elst was found to have spent millions of euros of church money on his own private house. He later 'resigned'. Once again ordinary Catholics had to endure the embarrassment of yet another Catholic cleric abusing the power and trust his position gave him.

In Germany, a tax is levied on church members by the

Friday 11 July 2014

Of Mice and Men and Evolution

Source: Iakes Ezkurdia, et. al., Multiple evidence strands suggest that there may be as few as 19 000 human protein-coding genes*
Size of the human genome reduced to 19,000 genes - ScienceDaily

Just how close to other mammals are we? The answer is much closer than most people think and of course far closer than creationists will admit and which more sensible religious people like to imagine.

A detailed study led by Alfonso Valencia, Vice-Director of Basic Research at the Centro Nacional de Investigaciones Oncologicas (National Cancer Research Centre - CNIO) in Spain, and published in the journal Human Molecular Genetic found that about 90 percent of protein-coding genes found in humans are common to the earliest metazoans (multicellular organisms), that 99 percent of them pre-dated the emergence of the primates 50 million years ago.

Wednesday 9 July 2014

Germ Warfare in Brazil

Credit: Gleison Miranda/FUNAI/Survival
Uncontacted tribe in Brazil ends its isolation | Science/AAAS | News

News that a previously isolated Amazonian tribe has made voluntary contact with a group of Brazilian government scientists from (FUNAI) marks a departure from the Brazilian Department of Indian Affairs' 'no contact' policy but was deemed necessary in this case because there was a serious threat to the welfare of the tribe from other tribes in the ares, following reports of raids on crops and theft of tools.

The reason for the 'no contact' policy is because of the very real threat to isolated people from the viruses we often take for granted such as influenza, measles and mumps. Between 1983 and 1985 some 60% of the

Sunday 6 July 2014

More Trouble Down Under for Paedo-Protecting Pope

"We will not take one step backward with regards to how we will deal with this problem, and the sanctions that must be imposed. We have to be even stronger".
Pope Francis, 11 April 2014
In stark contrast to Pope Francis' public professions of sorrow and wheedling apologies for the Catholic Church's role in facilitating institutionalised sexual abuse of vulnerable children by it clergy, and his assurances that the Vatican will do everything to bring them to justice, the Vatican has declined to cooperate with an Australian Royal Commission set up to investigate abuses by Catholic priests in Australia.

As reported by Lindy Kerin for ABC News:

The head of the Royal Commission into Institutional Responses to Child Sexual Abuse, Justice Peter McClellan, revealed last month that he had

Saturday 5 July 2014

Human Evolution - Ringing The Changes In Tibet

Tibetans
Tibetan altitude gene came from extinct human species - life - 02 July 2014 - New Scientist

The evidence that archaic, diversifying human populations behaved like a ring species over Europe and Asia just keeps on accumulating.

A couple of years ago I blogged about how a research team led by Rasmus Nielsen of the University of California, Berkeley, USA found that Tibetans differ from the Han Chinese by about thirty genes and most of these genes control how the body responds to altitudes.

This was a case of very rapid human adaptive evolution over a period as short as 3-6,000 years during which the

Consciously Evicting God From Another Gap

Consciousness on-off switch discovered deep in brain - life - 02 July 2014 - New Scientist

One of the favourite arguments used by religious apologists is that somehow materialism can't explain conscious thought and that a 'random' [sic] process like evolution could only ever give rise to random thoughts and not rational arguments.

Of course, this argument is never revised to accommodate developments in science and in our understanding of neurophysiology and the microscopic structure of neurons, so it is identical in form whether used by C.S.Lewis, William Lane Craig or Ken Ham even though our understanding of the science has been transformed immeasurably in the intervening half century.

But then we need to remember that religious apologists are not seeking to make converts but to keep believers believing and thus to ensure their income stream is maintained and the arrogant claims they make to

Friday 4 July 2014

Green River Exposes Layers of Creationist Lies

Green River Formation varves
One of my favourite creationist pseudo-scientists must be the psychologist with no qualifications in science or record of research in the subject, Dr. Paul D. Ackerman, who supplements his income from teaching psychology as an assistant professor at a minor university by writing bad science books and articles for creationists who also seem to have little knowledge or understanding of science. He ranks as one of my favourites becaiue he is so bad at it.

He is the notorious author of what must rank as one of the worst 'science' books for creationists ever published (it now has to be given away by the Institute for Creation Research) called It's A Young World After All: Exciting Evidence For Recent Creation. I've already dealt comprehensively with this book in a series of blogs so I won't dwell any more on it here, save to quote Dr Ackerman on what is one of the few nearly true things he said in his book:

Thursday 3 July 2014

Still Not Yeti!

Genetic analysis of hair samples attributed to yeti, bigfoot and other anomalous primates

Last October I reported on a tentative claim by geneticist Bryan Sykes of the Oxford-Lausanne Collateral Hominid Project that he might have solved the Yeti question, only the Yeti is a descendant of a Paleolithic bear known from a single jawbone from northern Norway. This bear is believed to be ancestral to both the polar bear and the brown bear. His claim was based on a comparison of mitochondrial DNA (mtDNA) from samples of hair claimed to have come from Yetis with those of known species held on the GenBank database, an international database of genetic information.

mtDNA is inherited in mammals from the female line only and, because it doesn't recombine during sexual reproduction, tends to be stable over time, mutating at a more or less constant rate. It thus makes an excellent means of tracing female line populations and evolutionary relationships. The biological significance of this find was not so much that it might have solved the Yeti question but that it might have revealed a living population of this Ice-Age bear in the Himalayas, where it might have taken refuge as the ice retreated.

Now Bryan Sykes has reported on a much more extensive investigation of mtDNA from hair samples of 'Yeti', 'Bigfoot', and

Monday 30 June 2014

Told You So!

The thing about creationists is that they are nothing if not predictable.

What's the betting that, if someone hasn't already done so, one or more creationist frauds will be misrepresenting this discovery as the discovery of a vast ocean of liquid water, and proclaiming the craved-for scientific proof of the Noah's flood myth by explaining where all the water came from - the 'fountains of the deep', no less?

Rosa Rubicondior;
Massive Subterranean Ocean 15 June 2014

Right on cue, Step forward Brian Thomas of the Institute for Creation Research:

Sunday 29 June 2014

Ken Ham - Fraud or Fool?

It's always fun, if you have nothing better to do, than to go to a creationists site and play spot the fallacies. For example, this stunning example from Ken Ham's Answers in Genesis site.

Naturalism, Logic and Reality

Those arguing against creation may not even be conscious of their most basic presupposition, one which excludes God a priori, namely naturalism/materialism (everything came from matter, there is no supernatural, no prior creative intelligence)... The following two real-life examples highlight some problems with that assumption:
  1. A young man approached me at a seminar and stated, "Well, I still believe in the big bang,

Friday 27 June 2014

Chimps Have Fashions Too

A group-specific arbitrary tradition in chimpanzees (Pan troglodytes) - Online First - Springer

Ever since Richard Dawkins coined the term, 'meme' in The Selfish Gene we have known that cultures, like genomes, are passed on through the generations by replicators which can gradually change over time and which can be subject to selection pressures, just like genes and combinations of genes. The difference is that memes are inherited after birth and so, unlike genes, we can change them and chose which to accept and which to reject. We can also chose which to pass on and which to allow to be consigned to history.

Another Brilliant Idea By The Intelligent Designer

You can say one thing about The Intelligent Designer - it doesn't let liberal sentimentality, compassion or morality get in the way of a good idea. In fact, it's almost exactly like The Intelligent Designer doesn't have any emotions or compassion, nor any idea of right and wrong.

I'll take that back. There is no 'almost' about it. It's exactly like The Intelligent Designer doesn't have any emotions, compassion or sense of right and wrong. It's exactly like The Intelligent Designer doesn't have any intelligent plan or any real purpose for its designs either.

Thursday 26 June 2014

Fighting Back Against Evolution

Antibiotic resistance focus of UK’s Longitude Prize : Nature News Blog

Great news that, by popular vote, the £10 million ($17 million) Longitude Prize will be awarded to the group which comes up with "a cost-effective, accurate, rapid, and easy-to-use test for bacterial infections" within the next five years. The intention is to help target antibiotic use so reducing the rate at which bacteria are evolving resistance.

This comes close behind a stark WHO report which stated:

Antimicrobial resistance (AMR) within a wide range of infectious agents is a growing public health threat of broad concern to countries and multiple sectors. Increasingly, governments around the world are beginning to pay attention to a problem so serious that it threatens the achievements of modern medicine. A post-antibiotic era—in which common infections and minor injuries can kill—far from being an apocalyptic fantasy, is instead a very real possibility for the 21st century.


The report went on to say:

Tuesday 24 June 2014

Henrietta Lacks Soul

Theists have a problem with souls.

The problem is that they were invented in ignorant times when people knew nothing of the microscopic structure of the human body and very little about how it actually worked. It sort of made sense to think that there is another entity living inside our body giving it 'life' and somehow looking out at the world through the windows of our eyes.

And of course, since it is almost impossible to imagine oblivion where all memory has gone and no thoughts

Sunday 22 June 2014

Parasite Problem for Creationists

Stone Age worm egg hints at origins of modern scourge - health - 20 June 2014 - New Scientist

News that the earliest known evidence of the parasitic flatworm which causes schistosomiasis in human has been found, reminds me how rarely we see creationist pseudo-scientists discussing parasites, least of all parasites on humans. Maybe they are just sensitive to the subject for understandable reasons given their generally parasitic lifestyle but that would require a social conscience. It's much more likely that it's impossible to fit them into a biblical model where a magic, benevolent god created everything for humans because it loves us.

Parasites, by definition, take from their hosts but give little or nothing in return. They also often make their hosts sick in the process.

Friday 20 June 2014

Crows Picking at the Neanderthal Creationist Corpse

A creationists 'explains' two sorts of evolution.
Note the lie that evolutionary biologists claim trilobites were our ancestors
and that foxes are the same species as dogs and wolves.
The genomic landscape underlying phenotypic integrity in the face of gene flow in crows

How carrion and hooded crows defeat Linnaeus's curse

Creationists don't understand what evolution is. Creation pseudo-scientists on the other hand, understand perfectly well what evolution is - which is why the term has to be deliberately misrepresented, and the ignorance maintained by misinformation, misrepresentation and lies. And the most important muddle that must be maintained is what the term 'species' means, how it's understood by biologists and how evolutionary theory explains the mechanism by which it arises.

Unable to argue against the massive amount of observed and observable evidence that change over time can be seen both in the phenotype and in the genotype of a species, they have tried to come up with a compromise

Wednesday 18 June 2014

Britons Rejecting Religion

Defining British Identity | British Social Attitudes Survey 31

Taxpayers' cash should not be used to fund faith schools, say voters | Education | The Observer

A couple more reports out this week confirm the rapid decline in the importance of religion in Britain and even growing hostility towards it. Both of these deal to some extent with the aftermath of the scandal of Muslim faith schools and state schools with a predominantly Muslim population in Birmingham being infiltrated by Islamic extremists.

They also come on top of the recent success of UKIP in

Tuesday 17 June 2014

Magnetic Reversal For Creationism

What would it take to convince a creationist that Earth is not just a few thousand years old?

To be frank, the answer to that is probably nothing - nothing on Earth would convince them because nothing on Earth convinced them it was just a few thousand years old in the first place. They were told that was the right thing to believe and that to be immune to reason and blind to contradictory evidence is something to be admired. The conclusion is sacred so facts must be ignored.

But imagine if there was some way Earth could have recorded its age in a way that is irrefutable, like a prisoner in a cell making a mark on the wall every day, and suppose this mark was not just marked on stone or even carved in stone but embedded forever in the structure of the stone itself, so no-one could have forged it or changed it and the only way to get rid of it was to destroy the stone itself.

Sunday 15 June 2014

Massive Subterranean 'Ocean'

Massive 'ocean' discovered towards Earth's core - environment - 12 June 2014 - New Scientist

News this week that geologists led by Steven Jacobsen of Northwestern University in Evanston, Illinois, USA, may have discovered a vast amount of water locked up in hydrated minerals deep in Earth's mantle. Estimates put the amount of water at some three times the combined volumes of Earth's oceans. Were this volume of water to be on the surface of Earth only the tops of mountains would be dry land.

Saturday 14 June 2014

Silly Bible - The Fishy Tale Of Jonah

It's sometimes fun to read through the Bible and work out which of the tales in it is the least plausible, the most pointless, the least well thought out, etc.

A strong contender for all three of these is the story of Jonah. It must rate alongside the Noah's Ark and the Tower of Babel stories as the silliest and, given that the Tower of Babel tale actually tries to explain why different people speak different languages so has some point to it, like Noah's Ark, the tale of Jonah doesn't actually offer anything by way explanation for anything we can observe.

Nor is it any more plausible because the scientific evidence shows that it couldn't have happened, although, to be fair to whomsoever made up the Jonah myth, at

Friday 13 June 2014

Church of England in Terminal Decline

Figures compiled and published in British Social Attitudes 30 (2013 Edition) make grim reading for mainstream religions in Britain. Self-identification with religion shows that affiliations to the Anglican churches (Church of England, Church in Wales and Church of Scotland) have halved from 40 percent to just 20 percent between 1983 and 2012.

Only one in five Britons now identify with the established church whose bishops are appointed nominally by the Queen, but, for all practical purposes by the Prime Minister, and some of whose bishops sit by right in the upper chamber of the UK bicameral parliament without ever having stood for election even by the Anglican congregations.

At the same time, the proportion of self-identifying as having no religion has increased from 31 percent to 48 percent, having briefly topped 50 percent in 2009. 'No religion' is now the largest demographic group by far and even outstrips all the Christian groups added together. The only groups to increase over this period have been 'Other religions' which includes Muslims, Jews, Hindus, Buddhists, Sikhs, etc of whatever sect, tripling from 2 percent to 6 percent, and 'Other Christian' group, which includes Methodist, Baptist, Presbyterian, United Reformed, Calvinist, Quaker, Plymouth Brethren, Mormon, etc, remained static and 'Catholic' declined marginally from 10 percent to 9 percent.

Bad those these figures are for the Anglican Church, the underlying trends must be giving them nightmares, especially those who earn their living from it. Of course, one has to be cautious about making accurate forecasts from trends, they are after all only trend and tend to become less accurate over time, representing only a best estimate, but these trends have been consistent now for 29 years. Projecting them forward for another 25 years (i.e. one generation) from the current year to 2039, and assuming a linear trend, we get a forecast guaranteed to spread gloom throughout the Anglican community in Britain - affiliations to the Anglican Church in Britain will be less than 1 percent of the population. Long before that stage is reached, the church will cease to be a viable entity having neither congregations to minister to nor clergy to minister to them.

On current trends, 'Anglican' will be the smallest demographic group, being outdone by all three other religious groups.

Meanwhile, 'No religion' will have reached the mid 6os, approaching two-thirds of the population.

As I said earlier, one has to be cautious about making form predictions from simple trends but these figures, especially those for 'No religion' are strongly supported by figures taken from a more detailed survey published in British Social Attitudes 28:

Those self-identifying as having no religion is almost exactly in line with the forecast for 2039 and tends to be hugher with each succecive generation. It might be tempting to assume that people tend to become more religious as they get older. However, the next chart shows otherwise.
In fact, religious attitudes and affiliations formed by the age of about 20 tend to be stable throughout life rarely deviating by more than a few percentage points. There are no crumbs of comfort to be gleaned from these figures for religion, least of all for Anglican Christianity. Given that only about 50 percent of children from actively religious parents tend to follow their example whilst only about 3 percent of children from non-religious parent will become religious. The next generation will be born to parents, 64 percent of whom are openly non-religious.

At some point in the next ten years or so, affiliation with the Anglican Church in Britain will fall below 10 percent of the adult population on it's way to de facto extinction, and will no longer be able to ignore the fact that its moral authority was long since lost, as was its smugly arrogant assumption of the right to guaranteed seats in our legislative body. The next head of state will inherit the title of Defender of the Faith with little or no faith to defend. He will he titular head of an irrelevant church with which almost no-one identifies and which few people will mourn the passing of.

It is time to disestablish the Church of England, to remove its bishops, and those of other religions who sit in the House of Lords by virtue of the positions of leadership of their respective faiths, to end its involvement in state-supported schools and to cut it loose from public subsidy and exemption from corporation tax on the considerable income derived from its investments in property, banking and industry. There is no justification for a faith subscribed to by only one in five Britons to be given special privileges over and above the rest of us. It's time to privatise the Church of England and allow it to find its place in the market-place for ideas, ethics and morals.







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Thursday 12 June 2014

Marriage in Secular Britain

Provisional figures for 2012 released by the UK Government Office of National Statistics (ONS) today show that the number of marriages in England and Wales have increased slightly, both in absolute numbers and as a proportion of the unmarried population. However, 70% of marriages are now civil marriages with just 28.6% Christian of one denomination or another.

Source: ONS
Total marriages have declined from about 352,000 in 1981 to 262,000 in 2012 although this was up from just under 250,000 in 2011. Over the same period, religious marriages have declined from just under 180,000 to just under 78,000.
In 1981 more than half of all marriages were conducted in a place of worship with Anglican marriages accounting for the huge majority of them. They have now fallen to half their former numbers.

The only religious category to show an increase over this period has been 'Other', which includes Jewish, Muslim and Sikh, up to 2920 from 1488 in 1981.
Source: ONS
Source: ONS
From being less than half of all marriages in 1981, civil marriages now comprise over 70% of all marriages.
The recent upturn in the number of marriages in England and Wales comes after many years of steep decline starting around 1970 when the post-war baby boomers - the 1960s generation - were coming of age, as shown by the blip between about 1965 and 1975. Marriages had been increasing steadily since these records began in line with population growth, being distorted by the two world wars.
Source: ONS

Whether the recent upturn is due to demographic changes with immigration into the UK from Eastern Europe under EU free movement laws, or whether this represents a bottoming out of the decline remains to be seen. There are a number of demographic changes that may have contributed to the decline in religion as an institution in Britain, not least of which has been, until very recently, a general feeling of security as the baby boomers and especially their children were brought up in the welfare state created by the post-war Labour government in response to the Beveridge Plan. People were better housed, better fed, better clothed, better educated, better paid and had more leisure time and disposable income than at any time in history. In addition, they were brought up in a less deferential culture and were more inclined to examine the old assumptions and think for themselves rather than being prepared to think what they were told. And these ideas were able to spread more quickly because of the mass communication media.

Better education made us more willing to see the old religious fables and origin myths as just that, not science or a useful description of the Universe any more. Better security rendered us less susceptible to the false hope that religion offers and better communication made us realise we were not alone in these new attitudes and new-found scepticism. And of course better and more accessible contraception and better sex education has turned sex into a recreational activity carrying far less risk, especially for females, reverting sex to probably it's more natural role in human relationships and freeing it from stigma and guilt that religion had imposed on it.

The strongest predictor of whether a person grows up to be religious is whether their parents are... In terms of keeping people, the non-religious are doing very well indeed. It is extremely unusual for somebody brought up in a non-religious household to join a religion, but it is not at all unusual for somebody brought up with a religious affiliation to end up as non-religious... The very fact that there is such a group, that it is quite big and that there wasn't such a group before is an indicator of secularisation.

Stephen Bullivant, theologian, St Mary's University, UK. Co-editor of The Oxford Handbook of Atheism
Quoted in Losing our religion: Your guide to a godless future by Graham Lawton; New Scientist 30 April 2014

Now we have brought our children up to think for themselves, the biggest cause of religion - parental example - has been removed from half the population. Studies have shown that only about 3% of children with Atheist or non-believing parents are likely to become religious, whilst only 50% of children from actively religious parents are likely to follow them. In the UK, for every 10 people to leave Catholicism, only 1 joins.

Source: ONS
Clearly, for most people who bother to get married at all, the reasons are social and/or economic, or simply because of a wish to show commitment. Even for those who get married in a church, the reason often has more to do with wanting a 'traditional' marriage and a nice setting for the ceremony. Marriage now has little to do with seeking permission for sex of an irascible magic man who takes a rather creepy interest in our bedroom activities.

Even for religious people, premarital sex will have been the norm in almost every case and most will have been living as a couple for some time. As the last chart shows, for all but the youngest age group, over 50% had cohabited prior to marriage, rising to over 80% for 30-45 year-olds, only a little below the cohabitation figures for civil marriages at 90%.

Religion has almost ceased to have any relevance to the institution or 'sanctity' of marriage in England and Wales and marriage is no longer seen as a prerequisite to a full sexual relationship.

Sources:
ONS: Marriage Summary Statistics 2012 (Provisional) (Excel sheet 192Kb).
ONS: Marriage Statistics, Cohabitation and Cohort Analyses (Excel sheet 343Kb).
ONS: Facts About Marriage.


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Tuesday 10 June 2014

Intelligently Designed Yeast

Students Build the First Eukaryotic Chromosome from Scratch - Scientific American

Interesting news recently in Scientific American. Students at Johns Hopkins University, Baltimore, Maryland, USA, have created an entirely synthetic chromosome and it works just fine, just like any other chromosome in fact, and why wouldn't it? Chromosomes are just chemicals after all. There is no magic involved.

The chromosome they were attempting to create was Chromosome 3 of the yeast used in wine-making and baking - Saccharomyces cerevisiae - which controls the yeast sexual reproduction and which contains 316,617 base pairs. However, rather than build the entire DNA chain, they synthesised only the active regions, ignoring the accumulated junk DNA from billions of years of evolution. In fact, all they needed to do was create the correct sequence of 272,871 base pairs. Still a massive task but not nearly so daunting as it might have been.

This is a pretty impressive demonstration of not just DNA synthesis, but redesign of an entire eukaryotic chromosome. You can see that they are systematically paving the way for a new era of biology based on the redesign of genomes.

Farren Isaacs, bioengineer,
Yale University, New Haven, Connecticut.
The interesting thing is that the yeast with the synthetic DNA is thriving and behaving just like regular yeast. The plan now is to breed it through thousands of generations to see how the synthetic DNA evolves and how much junk DNA is produced in the process. The long-term plan is to build an entirely synthetic genome for yeast which can then be manipulated to produce proteins, medicines, biofuels, etc.

From the point of view of this blog, the significant thing is not so much that the DNA was built but that, when real intelligent designers got to work, the best approach was to get rid of all the useless stuff that an unintelligent design process has created over billions of years, resulting in a design which was more efficient in terms of resources and no less efficient in terms of function. Of course, this would have been completely unnecessary had there been any intelligence involved in the original design.

Sorry, creationists, but your pet superstition has been exposed as bogus yet again. There really is no such thing as magic.

Reference:
Narayana Annaluru, et al; Total Synthesis of a Functional Designer Eukaryotic Chromosome
Science 4 April 2014: Vol. 344 no. 6179 pp. 55-58 DOI: 10.1126/science.1249252

'via Blog this'

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Love Hormone Dogs Creationism

"Science can't explain love! (And because science can't explain love, it can't explain anything. And because love exists, therefore God exists!)". I'm surprised no-one has written a creationist hymn about it, so they can sing it loudly every Sunday to help shout down their doubts.

The lie to that claim was given in a paper published online today in the Proceedings of the National Academy of Sciences of the United States of America (PNSA). A team of scientists from Japan, led by Teresa Romero of the Department of Cognitive and Behavioral Sciences, The University of Tokyo, Japan, in a beautifully simple experiment, showed that the hormone oxytocin increases the pair-bond between dogs and their masters.

Significance
Although the positive impact of social bonds on individual’s fitness has recently been demonstrated, the mechanisms underlying the motivation to form long-term associations remain largely unknown. Current evidence shows that oxytocin modulates social behavior but evidence of its effects in bond maintenance remains scant, especially in nonreproductive contexts. We provide evidence that in the domestic dog oxytocin enhances social motivation to approach and affiliate with conspecifics and human partners, which constitutes the basis for the formation of any stable social bond. Furthermore, endogenous oxytocin levels increased after dogs engaged in affiliation with their dog partners, indicating a stimulation of the oxytocin system during social interactions. Our findings highlight the important role that oxytocin has in the expression of sociality in mammals.

Social Sciences - Psychological and Cognitive Sciences:
Teresa Romero, Miho Nagasawa, Kazutaka Mogi, Toshikazu Hasegawa, and Takefumi Kikusui
Oxytocin promotes social bonding in dogs
PNAS 2014 ; published ahead of print June 9, 2014, doi:10.1073/pnas.1322868111

The researchers sprayed either a preparation of oxytocin or saline into the nostrils of sixteen dogs then allowed them back into a room where their owners were waiting. The owners had been instructed to ignore any social contact from their dog and did not know whether they had received oxytocin or saline. There was a statistically significant greater tendency for dogs to try to interact with their owners by licking, pawing and sniffing if they had received oxytocin than if they had received saline sprays.

Oxytocin is known to enhance pair-bonding between parents and offspring in many mammals and makes humans more trusting, cooperative and generous. This experiment also supports the theory that it may be involved in social interaction and friendship and will even act across species, especially where both species have a broadly similar social structure.

So, where does this leave our creationist friends' claim that somehow love can only be explained by God and exists in some spiritual, non-material realm, placing it outside the reaches of science and beyond human understanding? It leaves it where it always was: a nonsensical, evidence-free assertion that science has now shown to be false. Love is a physiological, biochemical response firmly in the realm of neurophysiology and psychology and so fully accessible to science and amenable to rational analysis and measurement.

And no less enjoyable for that.

Another gap closed and found not to be containing a god, of course.


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