Mapping Human Evolution Out of Africa

Neanderthal

Out of Africa; new research explores drive behind early humanity's travels across the world - Royal Holloway, University of London

Interesting news came a few days ago from Royal Holloway, University of London, that a new research project is to start next month, aimed at mapping the spread of humans out of Africa and across the globe, to occupy all major landmasses other than Antarctica. The research is financed by a £450,000 grant from Leverhulme Trust.

As the Royal Holloway press release says:

Creationism's Nightmare - Abiogenesis!

Haematite tubes

Haematite tubes from the NSB hydrothermal vent deposits that represent the oldest microfossils and evidence for life on Earth. The remains are at least 3,770 million years old.

Photo by Matthew Dodd

Evidence for early life in Earth’s oldest hydrothermal vent precipitates : Nature : Nature Research

Science is moving closer to an explanation of a process whereby the earliest proto-cells could have developed naturally on Earth. It's looking increasingly as though the best explanation of where suitable conditions could be found - in the rock precipitates around hydrothermal vents on ocean floors - is the right one.

It's also looking as though the process got going even earlier than we thought - when Earth was just few million years old, if the interpretation of the evidence presented in this paper is correct. It is strongly suggestive that the process may have got going at least 3.77 billion and maybe even 4.28 billion years ago.

The evidence was found in rocks from the Nuvvuagittuq belt in Quebec, Canada, which are believed to have been formed by precipitation around seafloor-hydrothermal vents.

Holy Smoke! Birds Use Cigarette Butts As Medication!

Urban house finch (Carpodacus mexicanus) nest.

Credit: JerryFriedman/CC BY-SA 4.0

An experimental demonstration that house finches add cigarette butts in response to ectoparasites - Suárez-Rodr-guez - 2017 - Journal of Avian Biology - Wiley Online Library

Here is yet another fascinating example of the ingenuity of biological adaptability - and an example that should make any self-respecting intelligent design advocate cringe with embarrassment.

Constantino Macías Garcia at the National Autonomous University of Mexico, and his colleagues have been studying a curious phenomenon observed in the Mexican urban house finch (Carpodacus mexicanus) in which they collect cigarette butts and place then in their nests. There was inconclusive evidence that the effect was to deter parasitic ticks and other nest parasites so they designed a simple experiment to settle the matter. It was strongly suspected that nicotine and other chemicals in the butts acts as a deterrent to parasites. House sparrows (Paser domesticus) have also been observed to use the same strategy.

Anglican Church Colluded in Abuse Cover-up.

Peter Ball
Groomed and abused 18 vulnerable boys and young men.

Church 'colluded' with sex abuse bishop Peter Ball - BBC News

It's ironic really! Just when I go on holiday to Italy, the centre of the organised global Catholic paedophile ring that we discovered existed some ten to fifteen years ago, a similar, though smaller, scandal breaks in England and it's not even involving the Catholic Church!

This one involves a form Anglican bishop, Peter Ball, and a former Archbishop of Canterbury, Lord George Carey. Peter Ball had been Bishop of Lewes and then Bishop of Gloucester during which time he groomed, exploited and sexually abused eighteen young men and boys who went to him seeking spiritual guidance. He was jailed for thirty-two months in October 2015 for these offences but was released last February after just sixteen months.

Now a report into the church's handling of the affair, ordered by the current Archbishop of Canterbury, Justin Welby, and chaired by the former chief executive of Camden Council, Dame Moira Gibb, makes harrowing reading, according to Welby. Carey as Archbishop of Canterbury, a cabinet minister and a high court judge all conspired to protect Ball and wrote letters to the police and the Crown Prosecution Service in his defence.

Cretaceous Bird Mocks Creationists

Bird caught in amber 100 million years ago is best ever found | New Scientist.

It's not often we get to look at creatures from 100 million years ago, displayed in such detail. Normally we have to make do with distorted stone fossils which been subjected to all sorts of pressures and stresses, leaching by water and slow replacement by minerals over centuries. It's sometimes surprising that very much detail has been retained at all.

Preservation in amber is quite another matter, however. The specimen is trapped and coated in resin in a matter of minutes and sealed quickly away from any bacteria other than those trapped with it, and isolated from oxygen, other than the minuscule quantities that can slowly diffuse through the amber. It's almost as though the specimen has been sealed in a time capsule.

Yet Another Of Those 'Missing' Transitional Species

Map of the main Middle to early Upper Triassic outcrops in the state of Rio Grande do Sul, southern Brazil, highlighting the occurrence of Aleodon (A) and its skeletal reconstruction with available bones (in yellow) based on all known specimens (made by VDPN).

The African cynodont Aleodon (Cynodontia, Probainognathia) in the Triassic of southern Brazil and its biostratigraphic significance

At one time it became quite tedious writing yet another article about yet another of the transitional fossils that creationists dogma says aren't there. Who wants to read more or less the same thing several times a week with only the details changed? The problem of course is that every fossil is transitional because each represents a snapshot in time of a species that is evolving and changing over time.

But this latest one is interesting in that it is clearly transitional not between one genus and another or even between one family and another but between two or three major taxons. It is transitional between the reptiles and the mammals and comes close to the stem amniote that had earlier split from the amphibians to give rise to the land-based egg-laying tetrapods. This group went on to give rise to reptiles, mammals, dinosaurs and birds. The current consensus in palaeontology is that the amniotes probably radiated from a single ancestral species that had evolved an egg able to be laid out of water, so breaking the dependence of the amphibians on water.

More Nastiness From The 'Intelligent Designer'

Zombie soldier beetles: Epizootics in the goldenrod soldier beetle, Chauliognathus pensylvanicus (Coleoptera: Cantharidae) caused by Eryniopsis lampyridarum (Entomophthoromycotina: Entomophthoraceae):

The 'Intelligent (sic) Designer' is ever inventive in its sheer malevolent nastiness, continually coming up with ideas that would have been a credit to a Medieval torturer for the Spanish Inquisition or the organisers of 'entertainments' for a bloodthirsty Roman amphitheatre audience.

This one in particular is the epitome of casual malevolence and indifference to suffering. Its design turns a beetle into a zombie just before killing it, and then grotesquely reanimates its corpse so it can do it all over again to more victims.

Sadly, the copyright holders, Elsevier, want to charge me £22.43 to save you the trouble of clicking on this link, to read in the Journal of Invertebrate Pathology how the team from the University of Arkansas and Cornell University, led by Donald C. Steinkraus, discovered how it works.

The victim is the goldenrod soldier beetles, Chauliognathus pensylvanicus which survives by eating the flowers of frost aster, Symphyotrichum pilosum, common boneset, Eupatorium perfoliatum, and Canada goldenrod, Solidago canadensisnormally. They normally mate on top of a flower. It seems, if you subscribe to the notion of intelligent design, that the intelligent designer (who isn't God by the way, so it isn't religion it's biology and should be taught in schools, but he just happens to be identical in every way to the god of a literal interpretation of the Bible) spotted the opportunity for a bit of fun, so He it designed a fungus, Eryniopsis lampyridarum, to infect these beetles.

When the fungus, which has been living in and consuming the female beetle, is ready it first turns its host into a zombie and makes it clamp itself onto a flower stem with its jaws, immediately before killing it. Then it makes lots of spores inside the dead female's body before reanimating it! 15-22 hours after death the female spreads her wings out wide so the spores can escape through the spiracles she used to breathe through, then her body swells, making her more attractive to males who try to mate with her, so getting infected in the process.

They they find a living female to mate with and infect her with the fungus and the cycle repeats itself.

Neat, eh?

Now, although intelligent (sic) design is 'definitely-biology-not-religion', cDesign proponentsists (sic) will normally resort to 'The Fall' to explain parasites such as this. 'The Fall' is of course a purely religious construction found in the Bible and forming the basis of Christianity, but at least this enables them to dismiss these hideous examples of, if it were the intention of a real conscious being, malevolent intent, as not their god's the intelligent designer's fault. It doesn't explain how turning beetles into zombies and then reanimating them just to spread a fungus infection to the next generation of beetles relates to some mythical event in the Bible (which of course it doesn't because it's definitely-science-not-religion, except it does) but at least it nearly gets God the intelligent designer off the hook - if you don't think too much about it.

Using real science of course, this is exactly the sort of thing evolution predicts because there is no plan, no morality and no concept of punishing anything for 'sin', simply the allele frequency changing over time to maximise the number of reproducing offspring.

'via Blog this'

Dogs and Wolves Have a Sense of Justice Too

Vetmeduni Vienna : Sensitivity to inequity is in wolves’ and dogs’ blood

To listen to religious apologists you would think there is something special about humans that sets them apart from the rest of nature.

More often than not, in addition to babbling about a 'soul' (although they don't seem to agree whether that's unique to humans or not) they will quote morality, ethics, love, compassion, and a sense of fair-play or justice as setting us about the mere beasts.

This view has repeatedly been refuted by naturalists who can show that, for example, elephants grieve over lost friends and relatives, that several animals including the other apes show compassion and empathy. Now a paper by a team from the University of Veterinary Medicine, Vienna, Austria believe they have shown that not only domestic dogs but wolves have a sense of fairness and equity.

Highlights

• Pack-living dogs and wolves show both reward and quality inequity
• More dominant individuals were more inequity averse for both dogs and wolves
• Inequity conditions influenced social behaviors in subsequent interactions
• Inequity aversion is probably linked to the evolution of cooperation in dogs and wolves

Summary
Sensitivity to inequity is thought to be an important mechanism for recognizing undesirable cooperative partners and thus crucial for the evolution of human cooperation [ 1 ]. This link may not be unique to humans, as cooperative non-human primates also react to unequal outcomes [ 2 ], whereas non-cooperative species do not [ 3 ]. Although this hypothesis has not been tested in non-primate species, studies revealed that pet dogs show a limited form of inequity aversion, responding to reward, but not quality inequity [ 4–6 ]. It has been proposed that this primitive form of inequity aversion was selected for during domestication and thus absent in their ancestors, wolves. Alternatively, wolves, which hunt, raise pups, and defend their territory cooperatively, are similarly inequity averse as non-human primates, or at least to the same degree as pet dogs. Testing similarly raised and kept pack-living dogs and wolves, we found both to be inequity averse when their partner was being rewarded but they were not for performing the same action. Additionally, both wolves and dogs reacted to receiving a lower-quality reward than their partner. These results suggest that the inequity response found in pack-living dogs and wolves is comparable to that observed in non-human primates; results from studies on pet dogs may be confounded by the dogs’ relationship with humans. Consequently, our results suggest that inequity aversion was present already in the common—probably cooperative—ancestor of wolves and dogs and thus support the hypothesis of a close link of cooperation and inequity aversion.

Jennifer L. Essler, Sarah Marshall-Pescini, Friederike Range
Domestication Does Not Explain the Presence of Inequity Aversion in Dogs
Current Biology, Volume 0, Issue 0. DOI 10.1016/j.cub.2017.05.061

© 2017 Elsevier Ltd.

This basic instinct in humans is of course the basis of many legal systems including English Common Law - from which the laws of most American states are derived (the exception being that of Louisiana which is derived from French Law). The Law assumes an entitlement to equal and fair treatment in a trial, including the idea that what was good in an earlier case should be good in this one - hence the Law is the body of cases. As we say in English Law, the Law if the cases; the cases are the Law.

Religious apologists have long argued that this this is what makes us 'civilised' and that the moral basis of this is God-given morals (conveniently ignoring the amoral, even immoral nature of their own god according to their holy books).

What the researchers found was that, in experiments where of a pair of dogs completed a task but only one was given a reward, or one was given a lower value reward than the other, the dog treated less fairly refused to co-operate in future experiments. The same phenomenon was demonstrated in a captive wolf pack where the response was also affected by the individual wolf's ranking in the pack heirarchy, with high-ranking dogs reacting more quickly to inequity, presumably because they were less used to being treated unfavourably.

Because a sense of equity is common to wolves and domestic dogs, it is strongly indicative that it was present in their common ancestor.

So, where does this leave the notion that somehow human's are above the animals because they are conscious, have empathy and enjoy civilising morals handed down by an invisible law-giver? It leaves it in tatters, of course. There never was any basis for this anthropocentric arrogance. Morals and ethics are evolved characteristics in social animals where teamwork and cooperation are essential for success.

'via Blog this'

Morocco Mystery Man

[left caption]

[Right caption/credit]

A composite reconstruction of what its discovers believe is the earliest known Homo sapiens fossil (from Jebel Irhoud), based on scans of multiple specimens. The scientists say the virtual imprint of the braincase (blue) indicates that brain shape, and possibly brain function, evolved within the H. sapiens lineage.

Credit: Philipp Gunz, MPI EVA Leipzig

The age of the hominin fossils from Jebel Irhoud, Morocco, and the origins of the Middle Stone Age : Nature : Nature Research

The press are having one of those, "The textbooks are going to have to be rewritten" days.

Apparently, the textbooks are not just updated with the most recent findings and understanding when a new edition is published; they have to be rewritten because that one little bit of new information shows that everything we thought we knew was wrong. You sometimes wonder if the science news is written by creationists - except of course that the news media don't then make the absurdly childish leap of concluding that because one little bit of science has been revised this proves the entire body of science is wrong - about everything, so God did it!

But, in this case, the entire evolutionary story of humans now needs to be rewritten, so we are told. You might now be wondering what is this amazing discovery? Humans are not apes? Not African apes, maybe? We've evolved from guinea pigs or spontaneously generated? The truth is slightly more prosaic of course, in fact it barely rates as startling at all - interesting and thought-provoking, naturally, but startling? The 'startling' fact is some archaic human fossil remains including skulls, flint tools and animal remains found in Morocco have been dated to about 300,000 years old and may be the oldest fossil Homo sapiens so far discovered.

I Want To Tell You A Story!

How did almost nothing end up making you?

Don't tell the creationists and spoil their delusion but we've pretty much worked it out. It's not what they were hoping for!

From Chapter 10 of my latest book, "What Makes You So Special?":

From that small, unremarkable member of the Cambrian biota; those stiff little chordates that swam around amongst the trilobites and fearsome Anomalocaris with its huge, jaw–like appendages that were once thought to be a different species in their own right, big things were coming; in fact the biggest things to ever live – the blue whale. From that unpromising beginning were to evolve the fasted running animal, the fasted flying animal, birds that can soar on the wind and sing symphonies, two forms of powered flight, echolocation at least twice, a brain capable of doing calculus without realising it, and an ape that can go to the moon.

But first, it had to learn to walk on land and breathe air.

Islam is not the Problem. Faith is the Problem!

The grotesque random slaughter of innocent people, including young children, in the name of Islam, in Britain, France and Afghanistan by Muslim fanatics, and the equally grotesque murders of innocent Norwegians by the Christian fanatic, Anders Breivik a few years ago are the results not of Islam or Christianity; they are the result of faith.

They are the result of people arrogating for themselves the right to determine who can live and who should die, based on nothing but faith and the belief faith gives them certain knowledge of what a god wants, who it wants to punish - and that it requires their help in meting out that punishment.

It would be easy to condemn the deluded, simple-minded fools who carried out these acts as 'evil'; as representative of an inherently 'evil' religion or the products of inherently evil cultures, but that would be missing the point entirely.

The problem is not Islam; the problem is not Christianity. The problem is faith.

The Meaning of Information to a Flightless Cormorant

A genetic signature of the evolution of loss of flight in the Galapagos cormorant | Science

The thing about information is that it means nothing without a reader; a reader moreover that can interpret the information and give it meaning.

Try this for example. Look at the following sequence of letters and see if it means anything:

teave
The chances are, especially if you're reading this in English, it won't mean much. It's information but it doesn't have much in the way of meaning. Maybe something to do with a popular beverage? Is it an accidental typo? Leave, heave, beaver, maybe?

New Book - What Makes You So Special?

My latest book goes on sale today!

It tells your story and how the stuff you are made of came to be and found itself on a tiny speck in the cosmos where the conditions were right to make more stuff stuff that could reproduce itself.

It explains why, 3.8 million years later, you can look at the cosmos and wonder how it all happened.

This book tries to answer that question, not in the technical terms one scientist would use when talking to another but in terms that should be understandable to anyone who wants to know this amazing story - the story of you!

Like all good books it should leave you feeling satisfied but wanting more. Above all, it should leave you feeling both very special and very humble.

From Chapter 1 'Something for Nothing'

The singularity cannot have had a cause because there was nothing to cause it. It could not have exist anywhere because there was nowhere for it to exist. It cannot have had a before because there was no time for it to have been in. It did not exist in space or time because there was no space or time for it to exist in.

For all practical purposes, it did not exist. It is zero; nothing; nada; not.

And yet this nothing gave birth to the entire Universe!

How Science Works - Ancient Egyptian DNA

Geographic context, of the samples used in this study.

Ancient Egyptian mummy genomes suggest an increase of Sub-Saharan African ancestry in post-Roman periods : Nature Communications

The thing about writing science books is that the moment you publish them they start to go out of date. The reason for this is obvious to anyone familiar with how science works and how knowledge is continually improving and being refined. Creationists, with their preference for certainty, no matter how false, over truth, this continual self-checking and self-revising nature of science is both baffling and disturbing.

As though to illustrate this point, no sooner had I put the finishing touches to my most recent book, "What Makes You So Special?", and submitted it for publication, than a paper was published that answered one of the mysteries that I alluded to in it. I had briefly covered, amongst other things, the origin of the Ancient Egyptians and their part of the human story. The mystery was who exactly the Ancient Egyptians were and where they came from.

The answer has been made possible by a new technique which has enabled DNA of sufficient quality to be extracted and compared to the DNA of other human groups. There is probably a lot more yet to come from these studies, including identifying what foreign incursions there were into Egypt in ancient times.

Coming Soon - Your Story!

Several years ago I wrote a blog post based on a much earlier post I originally put in a CompuServe Forum (who remembers those?). It told the story, as I then understood it, from the Big Bang to the evolution of modern humans. I called it What Makes You So Special?

When I promoted it on Twitter it sent several fundies into a frothing rage but the reaction I got from the science and especially Atheist community was surprising. One person said it made her cry and she kept reading it over and over. Another said he's printed it out and given it to his grandson to read. A third said it had changed her life.

Several said I should add more detail and make a book out of it...

That idea had been gestating for several years, and had even suffered one false start. Now it is nearing fruition: I am about to publish the book!

The book is aimed at the curious; at those who want to know and understand a little more about how they got to be alive, here and now and who find mystery and magic wholly unsatisfactory answers.