Sunday, March 06, 2022

Ukraine and the dark lessons of war: What does it mean to 'take' a country or a city?

Lucian K. Truscott IV, Salon
March 05, 2022

Ukraine Rebel troops (AFP)

Kherson, a port city in the south of Ukraine, has fallen to Russian forces. It is an important port on the Dnieper River delta, and military strategists say that now that the Russians have taken Kherson, they can turn their attention to Odessa to the west, Ukraine's third largest city, a major port and a center of tourism on the Black Sea.

This article first appeared in Salon.

Meanwhile to the north, Ukraine's two largest cities, Kyiv and Kharkiv, remain under siege, with Russian forces targeting civilian neighborhoods indiscriminately. According to the UN, the number of civilians killed by Russian bombs and shelling is approaching 1,000, but judging from what I've seen in television coverage, it's likely much higher. A video on the website of the New York Times on Thursday showed what appear to be projectiles fired from a Russian rocket launcher hitting a civilian neighborhood in Chernihiv, a city to the east and north of Kyiv. You can see civilian pedestrians on the street near where the rockets were about to hit, and then you can't see them. The video has red circles picking out six rocket warheads as they fly in and strike the street and surrounding buildings.

I've also seen a video showing cluster munitions striking an apartment complex in Kharkiv. Cluster bombs are anti-personnel weapons that are banned under international agreements that Russia and the U.S., among others, have not signed. There are no concentrations of Ukrainian army forces on battlefields in this war against which cluster munitions could legitimately be used. The fact that these bombs are landing in neighborhoods populated entirely by civilians suggests that Russian forces have been issued the munitions specifically to target civilian human beings.

Numerous photographs emerged this week of extensive damage to civilian neighborhoods in various cities in Ukraine showing the faces of apartment complexes entirely blown off, fires in what appear to be office and apartment buildings, and other damage to civilian areas.

What does it mean to "take" a city like Kyiv or Kharkiv or Kherson? Russian military commanders have clearly been ordered to "take" these Ukrainian population centers in the process of conquering and occupying the entire country. But from video footage of this war — and from the evidence of every other war in history — "taking" a city pretty much means destroying it, as in the famous GI saying that became a symbol of the Vietnam War: "We had to destroy the village in order to save it."

What is the purpose of an aggressor "taking" a city, or even the entire country, if in the process you are destroying the thing you say you want? If you are the one who ordered the invasion — in this case, Vladimir Putin — what do you do after you have "taken" a country you have destroyed, and how do you plan to deal with a population you have devastated by intentionally killing them with your military forces?

The contrast between "taking" a city or a country and what happens after that defines the essence of war. Look at Aleppo, for example, one of the Syrian cities the Russian air force was credited with helping to "take" from rebel forces opposing the Assad regime. Aleppo is one of the oldest continuously inhabited cities in the world and one of the capitals of the cradle of civilization. It has a history that goes back to a time before the Babylonian and Assyrian empires. Dozens if not hundreds of wars were fought over thousands of years between rulers of Aleppo and the kings and potentates of Ur and Babylon, in what is now Iraq, and the Egyptian empire. Aleppo was destroyed and rebuilt again and again. The ruins of Assad's and Russia's war on Aleppo sit on top of the ruins of one king's destroyed empire after another.

In the modern context, that's exactly what is happening today in Ukraine. The Russian army has been ordered to "take" Ukraine, and in so doing it is destroying Ukraine's cities and killing its citizens. In the coming days, we will no doubt see the ruins of onion-domed Orthodox cathedrals that have been destroyed in Kyiv and Kharkiv. I looked at Google Maps to check out Chernihiv, the city mentioned above that was hit hard by Russian rockets and artillery on Wednesday and Thursday. Along with several elaborate Orthodox cathedrals, there is something called the Hollywood Mall in Chernihiv located next to the Hypermarket Vena and the city's Hospital No. 2. Already we are seeing videos and reading reports of hospitals and schools destroyed in Kyiv, and I expect that soon we will see the ruins of the Hollywood Mall in Chernihiv alongside a hospital battered by Russian artillery shells and rockets.

There is a contradiction between the orders given in wars and what those orders accomplish. When armies of aggression invade foreign nations, the homes and apartment buildings and hospitals and grocery stores don't belong to those armies, so they just follow orders and destroy them. Sometimes the destruction occurs by accident, but in the case of Russia's invasion of Ukraine, it is being done on purpose on the orders of the Russian president.

You don't have to take the Ukrainians' word to understand that this is Putin's intent. All you have to do is see that he has issued rocket launchers with thermobaric missiles to his army, with the apparent intention of using them against Ukrainian cities. Thermobaric warheads, also known as "vacuum bombs," are not intended to destroy military fortifications. They have one purpose, and that is to kill human beings by exploding a gas cloud that sucks the oxygen from the air around the explosion, collapsing the lungs of anyone near it. There has been video footage that appears to show these missiles landing in civilian neighborhoods where people are walking down the street. The Russians are not even trying to hide what they're doing. They've allowed American TV reporters to film TOS-1 rocket launchers mounted on T-72 tank chassis as they cross the border into Ukraine on their way to Kharkiv. The only purpose of these rocket launchers is to fire thermobaric warheads.

The defenders of cities and countries under attack by invaders have only one order that they must follow: Defend their land and their homes and their country's treasures at all costs, with their lives if necessary. Their orders contain no contradictions at all. The cities and their buildings and their cathedrals and their homes belong to them. That's why they fight so hard, as the Ukrainians appear to be doing at this very moment. And that's why almost every time the invaders end up being driven away. In Aleppo, that's been going on for thousands of years. The people who live there today are descended from the ancient civilizations that defended the city from Hittites and Assyrians and Phrygians and Babylonians and Persians, and eventually the Macedonians and Byzantines. Now they are rebuilding their city, but if any lesson at all can be learned from history, they will one day be doing it again.

I've been watching the coverage of the war in Ukraine on MSNBC with great interest. One of the sharpest commentators has turned out to be Gen. David Petraeus, who had various commands in both Iraq and Afghanistan and was credited with the "surge" in Iraq that supposedly "won" that war, until it didn't.

As a reporter in Iraq in 2003, I was embedded in the unit Petraeus commanded, the 101st Airborne Division, in Mosul, the second largest city in Iraq. Mosul incorporates Nineveh, the ancient city that was first settled in 6000 B.C. and was the center of the Assyrian Empire around 2000 B.C. — yes, the same Assyrian Empire that included Aleppo. Mosul, which succeeded Nineveh, was conquered by Alexander the Great in 332 B.C. and was conquered by other armies along the way. When I was with Petraeus and his division in 2003, they were only the latest in that very, very long line of conquerors.

Petraeus was helpful to me as a reporter. He gave me the run of the region his division had "taken," including Mosul and Tal Afar and other towns his division "held." After I had been there for a while, I discovered something curious. Neither Petraeus nor his brigade commanders — three very talented West Point colonels — seemed to know what they were doing there. They established various base camps, both large and small, their units drove around in Humvees and the commanders flew around in helicopters, but they weren't really doing anything.

One day, when I was in Petraeus' headquarters in a former Saddam Hussein palace in Mosul (where I had gone to take a shower, because the palace had hot water), I asked the general what he was doing in Mosul. The way I put the question was, "General, what were your orders before you left Baghdad for Mosul?" He gave me a blank look, as if he had never been asked that question before. I then asked him, "Were you ordered to 'take Mosul,' for example?" He again looked at me blankly. It wasn't like I was asking him to divulge some top-secret piece of information. His entire division was up there in northern Iraq, right out in the open. The war was being widely covered on television and by newspapers. Everybody knew where the 101st Airborne was in Iraq. I was wondering what they were doing there, so I asked him a third time: "Were your orders, 'Go to Mosul?'" He didn't answer the question directly, but there was enough of a flicker of recognition on his face that I realized I had hit pretty close to the nub of it.

RELATED: Lt. Col. Alex Vindman: How Trump's coup attempt encouraged Putin's Ukraine invasion

An entire American infantry division had been ordered to go to Mosul and not told what to do when they got there, other than to do what they were now doing, which was driving around and defending themselves from insurgent attacks, but basically occupying space. Being there. You might say they were engaged in the occupation of Mosul, but that wasn't true, because you can't occupy a city or a country unless you've conquered it, and that wasn't what had happened with the 101st and Mosul.

Petraeus and his soldiers faced different reactions from the citizens of Mosul and northern Iraq. The Kurds were happy they were there. I visited a Kurdish unit at an outpost near the Turkish border, and they couldn't have been nicer to the brigade commander I was with. They served us a lavish lunch and took us all around and showed us their fortifications and told us what they were doing. The Shiites were less happy, but they weren't what you would call angry with Petraeus and his army, because they had been second-class citizens under Saddam and now that the Americans had come, they saw an opportunity to take over from the hated Baath Party of the Sunni tribes loyal to Saddam, who had run the country before the Americans got there. And then there were the former Baath party officials and Sunni commanders and soldiers of Saddam's army. They weren't happy at all, because they had been deposed from power, and they were probably the ones who were laying IEDs and shooting at American soldiers every time they got a chance.

And then it came to me: Petraeus and his division were waiting to be relieved by another American unit so they could go home. I soon discovered they were scheduled to return to Fort Campbell, Kentucky, about a month later. I asked who was coming to replace them and discovered it was a "Stryker" brigade from the 9th Infantry Division, which was downright astounding. Petraeus had about 30,000 troops spread over an area the size of Pennsylvania, and even he admitted he didn't have a large enough force to occupy this area that was full of insurgents who were fighting his soldiers and killing them. And now a unit one-third the size of his division was coming in.

I asked one of the brigade commanders who gave that order, and he answered, "General Rove." He was referring to Karl Rove, the Republican consultant who had run George W. Bush's campaign and was now a senior adviser to the president. The sarcastic referral to Rove as a "general" was because everything coming out of Washington to the American forces in Iraq was being done with an eye to Bush's 2004 re-election campaign. Orders had come down for the 101st and other units in Iraq to lower their casualty rates, because dead American bodies weren't exactly selling well to voters back home. Now "General Rove" was going to send a much smaller force into Mosul, perhaps in hopes that with fewer soldiers, they would suffer fewer casualties. Which was upside down and backward, of course, but then Rove wasn't really a general, so how the hell would he know?

The story of Petraeus and the 101st was essentially the story of America's war in Iraq. Units were sent over there and given tasks like occupying cities and training Iraq's reconstituted army while suffering as few casualties as possible, which was a contradiction in terms because they were in a war. And then those units were sent back to the U.S. and replaced with new units, and so on and so on.

Petraeus returned several times on other missions, and then he was sent to solve the hellish situation the U.S. had gotten ourselves into by 2007 when it appeared to be losing the war. He came up with the "surge" that suppressed opposition for a time and lowered casualties, but it didn't answer the question that I had way back in 2003, which was what the hell was America doing in Iraq?

Our military was also fighting a war in Afghanistan, and in 2010, Petraeus replaced Gen. Stanley McChrystal as commander of U.S. forces there. By that time, the U.S. had been rather unsuccessfully occupying Afghanistan for almost 10 years — or doing something anyway.

RELATED: War is the greatest evil: Russia was baited into this crime — but that's no excuse

McChrystal is the other commentator on MSNBC who seems to be on the ball about what is going on over in Ukraine, and it finally dawned on me why these two former American generals understand the situation so well: because they did the same thing to Iraq and Afghanistan. The U.S. played the role of Russia in those two countries, invading them and trying to occupy them with forces that were too small to accomplish the mission, just as the Russians have. Now Petraeus and McChrystal can sit at home in their studies with a clear understanding of the problems the Russians face in Ukraine — because they faced the same problems themselves. They had to deal with populations that didn't want us there, and were bent on fighting us as fiercely as they could to drive us out. Iraqi and Afghan citizens who didn't want us invading their countries fired RPGs at our vehicles. They set up ambushes to trap our convoys. They fired AK-47s at our soldiers and killed them.

We fought the insurgents in Iraq and the Taliban in Afghanistan, but neither Petraeus nor McChrystal nor the soldiers they commanded did what the Russians are doing in Ukraine: purposefully targeting civilians and civilian neighborhoods and hospitals and schools with thermobaric missiles and cluster bombs. But thousands of civilians were killed in both conflicts. The Watson Institute at Brown University has attempted to count civilian deaths in its "Costs of War" study. According to the institute, civilian deaths in Iraq and Afghanistan were caused by airstrikes, crossfire, IEDs, assassinations, bombings, night raids on suspected enemy positions, including civilian homes, and other causes. It is unknown how many civilian deaths are attributable to American forces, but the Watson Institute estimates that 71,000 civilians were killed in Afghanistan and somewhere between 100,000 and 200,000 were killed in Iraq.

When I was in Iraq, I saw the discipline involved in keeping American soldiers who were under attack every day by an enemy they couldn't see from striking out indiscriminately against the neighborhoods from which hostile fire was coming. American forces made mistakes and civilians were killed, but they didn't launch a campaign of terror against a civilian population the way the Russians appear to be doing in Ukraine.

The Russians invaded Ukraine without provocation, and they are attempting to subjugate and occupy it by attacking not just its army, but its entire population. You would think they would have learned from what happened to them in Afghanistan in 1980 when they were driven out of that country in abject defeat, and you would think they would have learned from the way the U.S. lost the wars in Iraq and Afghanistan. They obviously haven't.

Petraeus and McChrystal understand exactly what's going to happen to the Russians in Ukraine, because it's the same thing that happened to our army in Iraq and Afghanistan. The Russians will end up being driven out of Ukraine by the people who live there, because the cities the invaders have been ordered to "take" belong to the people who are defending them. Like the Iraqis and the Afghans, the Ukrainians mean it, and that is why they will end up winning the war the Russians have brought to their country.

That is why the city of Mosul is still there and David Petraeus is gone, and it's why Kabul is still there and Stanley McChrystal is gone. The citizens of Mosul and Kabul meant it when they told the Americans to get the hell out of their cities and go home. That's why the city of Aleppo, damaged as it may be, is still there and will be rebuilt as it has been for thousands of years, and that's why the Russians who bombed it are now bombing other cities in another country. Aleppo has been destroyed and rebuilt for millennia by the people who fought to defend it and those who are descended from the defenders of the past. One of the apparent lessons of history is that wars will never stop being fought over land that one group holds and another group wants.

Wars and the reasons they are fought are stupid because the people who order them are stupid, and that truth hasn't changed for thousands of years. The Russian who ordered his army to "take" a neighboring country that doesn't belong to him will end up in his dacha somewhere in the Ural, just as the American who ordered his army to "take" countries far from his shores has ended up on his ranch somewhere in Texas.

It's always men, and they're always egomaniacal and arrogant and stupid. History marches on and there are ruins to prove it that you can visit all around the world, including right here in the good old U.S. of A. Syria has Aleppo and we have Gettysburg, and soon Ukraine will have Kyiv and Kharkiv and Kherson.
What are thermobaric weapons? And why should they be banned?

The Conversation
March 03, 2022

Thermobaric weapons create a high-temperature fireball and a massive shockwave that literally sucks the air out of any living being in the vicinity.
 Sergei Ilnitsky / EPA

Russian forces in Ukraine may have used thermobaric weapons and cluster bombs, according to reports from the Ukraine government and human rights groups.

If true, this represents an escalation in brutality that should alarm us all.

While cluster munitions are banned by international convention, thermobaric munitions – also known as fuel-air explosive devices, or “vacuum bombs” – are not explicitly prohibited for use against military targets.

These devastating devices, which create an oxygen-eating fireball followed by a deadly shockwave, are far more powerful than most other conventional weapons.

What are thermobaric weapons?


Thermobaric weapons are generally deployed as rockets or bombs, and they work by releasing fuel and explosive charges. Different fuels can be used, including toxic powdered metals and organic matter containing oxidant.

The explosive charge disperses a large cloud of fuel which then ignites in contact with the oxygen in the surrounding air. This creates a high-temperature fireball and a massive shockwave that literally sucks the air out of any living being in the vicinity.

Thermobaric bombs are devastating and effective in urban areas or open conditions, and can penetrate bunkers and other underground locations, starving the occupants of oxygen. There is very little that can protect humans and other life forms from their blast and incendiary effects.

A 1990 CIA report, cited by Human Rights Watch, noted the effects of a thermobaric explosion in a confined space:
Those near the ignition point are obliterated. Those at the fringe are likely to suffer many internal, thus invisible injuries, including burst eardrums and crushed inner ear organs, severe concussions, ruptured lungs and internal organs, and possibly blindness.

A history of horror

Crude versions of thermobaric weapons were developed by Germany during World War Two. Western states, as well as the Soviet Union and latterly Russia, have used them since the 1960s.

The Soviet Union is believed to have used a thermobaric weapon against China during the Sino-Soviet conflict of 1969, and in Afghanistan as part of its takeover of that country in 1979. Moscow also used them in Chechnya, and has reportedly provided them to separatist rebels in eastern Ukraine.

The United States has used these weapons in Vietnam and in the mountains of Afghanistan.

Why some weapons are banned, even in war


Although thermobaric weapons are not yet unequivocally banned, there are several points that argue against their development and use.

International humanitarian law stipulates what is and is not permissible during warfare. There has long been an understanding that even wars have their limits: while some weapons are considered legal, others are not, precisely because they violate key principles of humanitarian law.

A new report from Human Rights Watch makes it clear the Russian invasion of Ukraine is illegal. It draws on the Geneva Conventions to define the illegitimacy of Moscow’s actions, including its use or potential use of particular weapons.

The use of weapons in indiscriminate attacks – those that cannot distinguish between combatants and civilians - is forbidden by the Geneva Conventions.

A thermobaric weapon might be targeted specifically at military installations and personnel, but its effects cannot be contained to one area. In all likelihood, many civilians would be killed if such bombs were used in any city.

Using explosive weapons in populated areas would result in indiscriminate and disproportionate attacks. Aerial bombs, even if aimed at military objectives, pose a grave threat to civilians because of their wide blast radius.

Unnecessary suffering

Efforts to ban these weapons have not yet produced a clear prohibition. The 1980 Convention on Certain Conventional Weapons (commonly called the “Inhumane Weapons Convention”) addresses incendiary weapons, but states have managed to avoid an explicit ban on thermobaric bombs.

In addition to the impacts on civilians, thermobaric bombs would cause superfluous injury and unnecessary suffering. Under international humanitarian law, they should not be used.

There is a point at which – even if a war is deemed legitimate or “just” – violence must not involve weapons that are excessively cruel or inhumane.


If a weapon is likely to prolong the agony of soldiers (or civilians) or result in superfluous and unacceptable injuries, theoretically its use is not permitted. Thermobaric weapons clearly seem to meet this definition.
Cluster bombs and nuclear weapons

It is not only thermobaric weapons that cause us concern in the current war.

Ukraine’s government and human rights groups say Russia has also used cluster munitions. These are bombs or rockets that release a cluster of smaller “bomblets” over a wide area.


Cluster munitions were banned under an international convention in 2008. Russia has not signed (nor has the US, China or India), but until now it has largely respected the convention’s provisions.


Perhaps of greatest concern, however, is Moscow’s nuclear weapons arsenal. President Vladimir Putin has hinted strongly that he would potentially be willing to use them, putting Russian nuclear forces on high alert and warning that countries which interfere in the invasion will face “consequences you have never seen”.

Russia has around 6,000 nuclear weapons and an escalation of conflict could result in their use – either deliberately or inadvertently during the fog of war.

Putin is not the only one to have made threats like this. The US holds around 5,500 nuclear weapons of its own, and its nuclear policy promises nuclear devastation to opponents.

Even the British and French resort to nuclear pressure, and former US president Donald Trump, when threatening North Korea, used similar language. But Putin’s statement goes beyond even these threats.

It is these very real dangers that led 122 states at the United Nations to vote in favour of developing the Treaty on the Prohibition of Nuclear Weapons in 2017.

The war in Ukraine is the latest reminder that we must act to eliminate thermobaric, cluster, and nuclear weapons, under strict international control. The stakes are simply too high to allow these dangers to remain.


Marianne Hanson, Associate Professor of International Relations, The University of Queensland

This article is republished from The Conversation under a Creative Commons license. Read the original article.
Death: How long are we conscious for and does life really flash before our eyes?

The Conversation
March 05, 2022

Brain image (Shutterstock)

The first time I reached past the sheer horror of the concept of death and wondered what the experience of dying may be like, I was about 15. I had just discovered gruesome aspects of the French revolution and how heads were neatly cut off the body by a Guillotine.

Words I remember to this day were the last of Georges Danton on April 5, 1794, who allegedly said to his executioner: “Show my head to the people, it is worth seeing.” Years later, having become a cognitive neuroscientist, I started wondering to what extent a brain suddenly separated from the body could still perceive its environment and perhaps think.

Danton wanted his head to be shown, but could he see or hear the people? Was he conscious, even for a brief moment? How did his brain shut down?

On June 14, 2021, I was violently reminded of these questions. I set off to Marseille, France, having been summoned to Avignon by my mother because my brother was in a critical state, a few days after being suddenly diagnosed with terminal lung cancer. But when I landed, I was told my brother had passed away four hours ago. An hour later, I found him perfectly still and beautiful, his head slightly turned to the side as if he was in a deep state of sleep. Only he was not breathing anymore and he was cold to the touch.

No matter how much I refused to believe it on that day, and during the several months that followed, my brother’s extraordinarily bright and creative mind had gone, vaporised, only to remain palpable in the artworks he left behind. Yet, in the last moment I was given to spend with his lifeless body in a hospital room, I felt the urge to speak to him.


What can brain waves really tell us?
Shutterstock

And I did, despite 25 years of studying the human brain and knowing perfectly well that about six minutes after the heart stops, and the blood supply to the brain is interrupted, the brain essentially dies. Then, deterioration reaches a point of no return and core consciousness – our ability to feel that we are here and now, and to recognise that thoughts we have are own own – is lost. Could there be anything of my beloved brother’s mind left to hear my voice and generate thoughts, five hours after he had passed away?
Some scientific experiments

Experiments have been conducted in an attempt to better understand reports from people who have had a near death experience. Such an event has been associated with out-of-body experiences, a sense profound bliss, a calling, a seeing of a light shining above, but also profound bursts of anxiety or complete emptiness and silence. One key limitation of studies looking into such experiences is that they focus too much of the nature of the experiences themselves and often overlook the context preceding them.

Some people, having undergone anaesthesia while in good shape or having been involved in a sudden accident leading to instant loss of consciousness have little ground to experience deep anxiety as their brain commences to shut down. On the contrary, someone who has a protracted history of a serious illness might be more likely to get a rough ride.

It isn’t easy to get permissions to study what actually goes on in the brain during our last moments of life. But a recent paper examined electrical brain activity in an 87-year-old man who had suffered a head injury in a fall, as he passed away following a series of epileptic seizures and cardiac arrest. While this was the first publication of such data collected during the transition from life to death, the paper is highly speculative when it comes to possible “experiences of the mind” that accompany the transition to death.

The researchers discovered that some brain waves, called alpha and gamma, changed pattern even after blood had stopped flowing to the brain. “Given that cross-coupling between alpha and gamma activity is involved in cognitive processes and memory recall in healthy subjects, it is intriguing to speculate that such activity could support a last ‘recall of life’ that may take place in the near-death state,” they write.

However, such coupling is not uncommon in the healthy brain – and does not necessarily mean that life is flashing before our eyes. What’s more, the study did not answer my basic question: how long does it take after the cessation of oxygen supply to the brain for the essential neural activity to disappear? The study only reported on brain activity recorded over a period of about 15 minutes, including a few minutes after death.

In rats, experiments have established that after a few seconds, consciousness is lost. And after 40 seconds, the great majority of neural activity has disappeared. Some studies have also shown that this brain shutdown is accompanied by a release of serotonin, a chemical associated with arousal and feelings of happiness.

But what about us? If humans can be resuscitated after six, seven, eight or even ten minutes in extreme cases, it could theoretically be hours before their brain shuts down completely.

I have come across a number of theories trying to explain why life would be flashing before someone’s eyes as the brain prepares to die. Maybe it is a completely artificial effect associated with the sudden surge of neural activity as the brain begins to shut down. Maybe it is a last resort, defence mechanism of the body trying to overcome imminent death. Or maybe it is a deeply rooted, genetically programmed reflex, keeping our mind “busy” as clearly the most distressing event of our entire life unfolds.

My hypothesis is somewhat different. Maybe our most essential existential drive is to understand the meaning of our own existence. If so, then, seeing one’s life flashing before one’s eye might be our ultimate attempt – however desperate – to find an answer, necessarily fast-tracked because we are running out of time.

And whether or not we succeed or get the illusion that we did, this must result in absolute mental bliss. I hope that future research in the field, with longer measurements of neural activity after death, perhaps even brain imaging, will provide support for this idea – whether it lasts minutes or hours, for the sake of my brother, and that of all of us.

Guillaume Thierry, Professor of Cognitive Neuroscience, Bangor University
Monkey teeth are shedding new light on how early humans used tools

The Conversation
March 05, 2022

Rhesus macaque Macaca mulatta (Paul Asman and Jill Lenoble)

The macaques of Japan’s Koshima Island are a clever bunch. Well known for performing some remarkably complex tasks, such as washing sweet potatoes and filtering wheat from sand in the seawater, they’ve even been spotted catching live octopuses from the sea.

During continuous observations the macaques’ unique skills were seen rapidly spreading through the population and provided some of the first evidence of local habits in animals.

I recently visited the Primate Research Institute at Kyoto University to study the teeth remains of macaques who had died naturally on Koshima Island, one of the longest running primatological field sites in the world.

It was part of a project to create a database of tooth wear and dental disease in wild primates – but I very quickly noticed something extremely unexpected. All the deceased macaques had identical – and very unusual – tooth wear for a primate. And not only that, it seemed remarkably similar to the tooth wear commonly found in hominin (humans and our closely related ancestors) fossil samples. I knew I had to investigate further.

Through collaborations with local primatologists, and experts in studying microscopic features on tooth surfaces, we studied the tooth remains of 32 individuals in more detail, recording the overall tooth wear, fractures and pathologies. This allowed us to directly compare the features on the tooth’s surface with published examples in hominin fossils.

Surprising toothy similarities

“Toothpick” grooves on back teeth and large vertical scratches on front teeth are thought to be unique to hominins, and most likely caused by distinctive tool use. The markings are used as evidence for the earliest forms of cultural habits identified during human evolution.

But as my colleagues and I found these same types of unusual tooth wear in the preserved teeth of the deceased wild Koshima macaques, we set out to try to explain the similarities using a combination of extensive literature and ongoing field observations.

In fossil hominin samples, the large scratches on front teeth are typically considered to be caused by a type of behaviour called “stuff and cut” in which an item, such as an animal hide, is held between the front teeth and a stone tool used to slice portions off.

Accidental contact of the stone tool with the outside of the front teeth causes the marks, and it’s suggested that by studying the orientation and concentration of scratches in different areas of these teeth, insight into right or left handedness can be gleaned.

Similarly, because “toothpick” grooves commonly form between back teeth, and long thin parallel scratches are often found within these grooves, it has long been considered that these grooves must be caused by a tool being placed into the gap between teeth and repeatedly moved back and forward to remove food debris or alleviate discomfort (hence the name toothpick grooves).

But there is no evidence for these types of tool use in Koshima Island macaques, or indeed any behaviour that could be considered habitual tool use. Instead this wear is likely caused by eating shellfish and accidentally chewing and consuming sand. The macaques were frequently observed picking up food from sandy beaches – and despite their attempts to wash the sand off, some does still get chewed as there is sand in their faeces.

Shellfish are also regularly eaten, and the macaques use their front teeth to both dislodge them from rocks and to scoop out the contents. These behaviours likely cause this extreme wear, due to the sand, hard shells and rock coming directly into contact with different tooth surfaces on a regular basis.

It is easy to imagine how large parallel scratches could form when biting down on foods covered in sand, or when attempting to dislodge and consume shellfish with no tools.

Why the root grooves and markings within the grooves should form on back teeth when sand or grit is chewed needs further research, but is probably due to small hard particles passing over these surfaces during the mastication cycle and during swallowing.
Implications for human evolution

So, it seems that normal chewing and food processing can cause these sorts of wear patterns without the need to infer complex and habitual tool use.

And as there are even more dental similarities between fossil hominin samples and this macaque group at the microscopic level – as well as high rates of tooth chipping, extreme overall tooth wear and the bevelled appearance of front teeth – it has to be considered that there is a common cause that is nothing to do with tool use at all.

Of course, it is the case that humans have been using tools for a long time, evident by the substantial number of stone tools found throughout human evolution. But this does not mean that they were responsible for the unusual wear found on hominin teeth.

In fact, there is growing evidence for grit mastication, and marine molluscs are also thought to have been consumed. If the fossil hominin tooth wear is caused by eating behaviour, then studying their tooth wear in more depth may give vital insight into dietary and behaviour changes during human evolution. And studying living primates today could continue to offer crucial clues that have been overlooked in the past.

Ian Towle, Postdoctoral researcher & teaching assistant, London South Bank University

This article is republished from The Conversation under a Creative Commons license. Read the original article.
Animals have evolved to avoid overexploiting their resources – can humans do the same?

The Conversation
March 03, 2022

Lion (AFP Photo/Tony Karumba)

People have been trying to understand how predators and prey are able to stay balanced within our planet’s ecosystems for at least 2,400 years. The Greek author Herodotus even raised the question in his historical treatise “Histories”, written around 430 BC.

And when Charles Darwin published in 1859 his revolutionary theory of evolution in “On the Origin of Species”, this raised an even more difficult question: why do predators not evolve to become so aggressive that they eat all their prey and then go extinct themselves?

Scientists have since doubted whether it’s possible for the process of evolution to create “prudent predators” able to avoid extinguishing their own prey. The American ecologist Lawrence Slobodkin proposed the idea of prudent predation in 1960, but was strongly criticised by evolutionary biologists.

Perhaps under the influence of anti-communist sentiment linked to the cold war between the Soviet Union and the US, biologists argued that prudent predation would require evolution to act on groups rather than single individuals of a species – and that such “group selection” was unlikely to occur.


Predators must avoid overexploiting their prey if they are to survive.
Jonas Bengtsson/Flickr, CC BY

Although modern evolutionary theory has moved beyond this dichotomy between individual and group selection, scepticism about the latter – and about prudent predation – lingers among many scientists.

However, in a recent study published in Ecology Letters, my colleagues and I show – using complex predator-prey models – how this delicate equilibrium between predator and prey could have evolved.

Prudent predation means that a predator species has evolved to avoid consuming as much and as aggressively as its own physical limits permit. Effectively – though not knowingly – prudent predators are restraining themselves for the benefit of other members of their species, as well as for future generations.

Even when predators are prudent in their natural habitat, they may overexploit the prey around them if they are moved to places where they don’t belong. An example is the Indo-Pacific lionfish, whose populations have rapidly expanded in and around the Gulf of Mexico and the eastern Mediterranean Sea.

Lionfish feed on smaller fish and shellfish that live in reefs. They are such ferocious predators that ecologists became concerned that, especially in the Gulf of Mexico, few other fish species would survive their presence. Instead, something else happened.


Invasive lionfish endanger their own colonies when they consume too much prey.
Alexander Vasenin/Wikimedia

Lionfish populations suddenly began falling in Gulf of Mexico reefs, while their native competitors remained. It appears that, because lionfish overexploit their prey, they are not such strong competitors after all.

These dwindling lionfish populations are therefore experiencing evolutionary pressure to feed less ferociously, so they can occupy reefs longer and have more opportunities to spread to other reefs. Eventually, we expect them to adapt to their new habitat by becoming prudent predators.

Implications

There’s more to be learned from this than just ecology. In modern, westernised societies, there’s a deep-seated idea that everybody’s pursuit of personal benefit will ultimately benefit society as a whole. For example, CEOs of public corporations are expected to act for the benefit of their shareholders alone. They will not support a market competitor, even if loss of the competitor would mean less consumer choice.


This thinking hinges on an analogy between market economics and evolution, which both rely on the survival of the fittest. “Survival of the fittest” refers to the principle that those variants of a gene, species, business model or technology that are best adapted to current circumstances will prevail, while others will die out.

Prudent predation also follows the survival of the fittest principle. However, the “fittest” organism here isn’t the one able to produce the greatest number of surviving offspring. Rather, it’s the one that succeeds in generating the greatest number of new colonies.


Tar sands, that damage the environment, can provide fossil fuel energy to communities thousands of miles away.
kris krüg/Flickr, CC BY-NC-ND

Colonies of species that overexploit their resources are not fit in this sense, because they collapse before getting the chance to spread to other places. In the past, when societies weren’t globally connected, similar principles applied to human choices. Societies that overexploited their resources would eventually collapse, making room for more prudent societies to expand.

However, in today’s globalised world, the imprudent actions of people in one place can harm people at entirely different places. For example, the oil heating my poorly insulated home might be coming from tar sand fields polluting the environment in Canada.

The mechanism by which survival-of-the-fittest brings about prudence therefore cannot work any more. The analogy with nature has broken down. It can no longer support the belief that the pursuit of individual benefits will ultimately lead to balance in society and economics.

Axel G. Rossberg, Reader in Theoretical Ecology, Queen Mary University of London

This article is republished from The Conversation under a Creative Commons license. Read the original article.


Syrians celebrate Ukraine capturing Russian pilot accused of Aleppo air strikes


Jamie Johnson
Sat, 5 March 2022

Major Krasnoyartsev

Syrians were celebrating on Saturday night as a Russian pilot involved in bombing raids on their country was reportedly shot down over Ukraine and captured by local forces.

Major Krasnoyartsev is believed to have been pictured alongside Vladimir Putin and Bashar al-Assad, the Syrian president, at Russia’s Khmeimim Air Base in north-west Syria, where the pilots were lauded as heroes.

In fact, Russian air strikes killed nearly 8,000 civilians, including 2,000 children and 1,200 women, according to the Syrian Observatory for Human Rights.

Ukrainian soldiers shot down a Russian Su-24 fighter-bomber near Chernihiv on Saturday morning, according to Ukrainian authorities. The co-pilot was killed, but a pilot who gave his name as Krasnoyartsev ejected himself and was later found bloodied and bruised by Ukrainian troops.
Russians ‘clueless about mission’

During an interrogation, which was posted on social media, the Ukrainians asked him: “You knew you were bombing a peaceful city, right?”

Having given his name and saying that he belonged to the 8,689th unit, Mr Krasnoyartsev said: “We’re not being told anything.”

He was then asked how many bombing raids he had done on Chernihiv. Mr Krasnoyartsev replied: “It’s the first one in Chernihiv. Prior to that, we flew along the border.”

Chernihiv, a town of 285,000 people located north of Kyiv, has seen at least 47 civilians killed by Russian bombers in the past few days.
Syrian thanks ‘Ukrainian freedom fighters’

News of his apparent capture spread across Syria on Saturday.

Hussein Akoush, who fled Aleppo during Russia’s bombing campaign on the city, told The Telegraph: “I thought those pilots would ultimately get away with their crimes since it’s so difficult to identify them. But the Ukrainians have avenged for Syrians. Not only killing pilots and capturing others alive, but by exposing their participation in Syria.”

The 27-year-old added: “Russian warplanes killed my family members,” and speculated that the captured pilot could have been responsible.

Fared al-Hor, an activist and photojournalist from Aleppo, shared the news on Twitter, writing: “After serving in Syria and killing, destroying and bombing many places under the auspices of the criminal Bashar al-Assad, this Russian pilot was captured by the Ukrainian forces after his plane was shot down in Ukraine.”

Another Syrian, from a town on the outskirts of Damascus, said: “The free Syrian people are finally getting their vengeance. Thank you brave Ukrainian freedom fighters.”
Wind turbines can breathe new life into our warming seas


Tom Rippeth, Professor of Physical Oceanography, Bangor University, 

Ben Lincoln, Research Fellow in Applied Observational Oceanography, Bangor University, 

Robert Dorrell, University Research Fellow, Energy and Environment Institute, University of HullSee

Fri, 4 March 2022

Ian Dyball / shutterstock

Offshore wind is set to move further and further from shore, as demand for renewable energy grows and new floating turbine technology makes deep-water expansion possible. However, for the first time, large areas of the UK continental shelf now open for development are “seasonally stratified”. David Attenborough has described these seasonal seas as some of the most biologically productive on the planet. While they only cover 7% of the ocean, they are estimated to account for somewhere between 10% and 30% of the life at the bottom of the food web.

Map of offshore wind developments

According to our new research, one byproduct of deep-sea wind farming is that the foundations of these floating turbines could help reverse the damaging effects of climate change on such seas.

In seasonally stratified seas, the water is completely mixed during winter, but separates into layers in the spring with warm sunlit water forming over the top of colder water below. The formation of this “stratification” during spring triggers a massive explosion of marine life as phytoplankton (microscopic algae) blooms in the warm surface waters, forming the base of a food chain which ultimately supports fish, seabirds and whales.


However, the nutrients in the sunlit surface layer rapidly become exhausted by the plankton bloom. After this point, growth depends on nutrients stirred up from the deep water by turbulence associated with tides, winds and waves.

This turbulence not only stirs nutrients up, but also stirs oxygen down into the dark, deeper layers where dead plants and animals sink and rot. Since oxygen is needed for things to decay, this mixing helps this “marine snow” to rot, transforming it back into useful nutrients.

Climate change could starve our shelf seas

Aquatic food web diagram

Our changing climate means stratification is starting earlier in the year and plankton is blooming earlier in spring, out of sync with the life cycles of larger animals. During summer, the stratification is predicted to increase, a change already well documented in the open ocean.

Increasing stratification will reduce the ability of natural turbulence to stir up vital nutrients from the deep into the warm water surface layer and so diminish their ability to sustain marine ecosystems.

As the ocean warms, it is also less able to hold oxygen, potentially leading to poor water quality.

So where do wind farms come in? The introduction of wind turbines into deeper water, where the ocean is stratified, will provide a new, artificial, source of turbulence. Water flowing past the floating turbine foundations will generate wakes, causing the warm and cold layers to mix together. In fact, we recently published research showing the wake from foundations at least doubles the natural turbulent mixing within the region of an offshore wind farm.

Diagram of different types of offshore wind technology

This increased turbulence could potentially offset the impacts of climate change on stratification and increase the supply of nutrients to the surface layer and oxygen to the deep water. Something similar already occurs around underwater banks, which is why very productive fisheries are often found in places like Dogger Bank in the North Sea or the Grand Banks of Newfoundland – shallow points where different layers of the ocean have been mixed together.

It seems that offshore wind could help seasonally stratified seas become more productive, more biodiverse and support more fish. Careful turbine design and wind farm planning could therefore provide an important tool in the battle to save these important ecosystems from the worst impacts of climate change.
Imagine weekly climate newsletter

Don’t have time to read about climate change as much as you’d like?
Get a weekly roundup in your inbox instead. Every Wednesday, The Conversation’s environment editor writes Imagine, a short email that goes a little deeper into just one climate issue. Join the 10,000+ readers who’ve subscribed so far.

This article is republished from The Conversation under a Creative Commons license. Read the original article.


The Conversation

Ben Lincoln receives funding from the UK National Environmental Research Council, the European Union.& Welsh Government.

Robert Dorrell receives funding from the UK Natural Environment Research Council and the UK Engineering and Physical Sciences Research Council.

Tom Rippeth receives funding from the UKRI NERC and EPSRC. He is a volunteer for a Liberal Democrats and has campaigned again a new road scheme in North Wales.
Russian dancer Pasha Kovalev says he will raise money for children in Ukraine

Tom Beasley
·Contributor
Sat, 5 March 2022

Pasha Kovalev says the Ukraine invasion 'hits too close to home' for him. (David M. Benett/Getty Images)

Russian dancer Pasha Kovalev has revealed his charitable foundation will use some of its funds to help children affected by Russia's invasion of Ukraine.

The former Strictly Come Dancing star said the current crisis "hits too close to home" for him and fellow Russian dancer Anya Garnis, with whom he runs charity event Rise Up With the Arts.

Read more: Strictly pro fears for grandmother trapped in Ukraine

Kovalev moved from his home nation to the USA in 2001 for his dance career and then relocated to the UK a decade later to take part in Strictly Come Dancing.

In a statement on Instagram, he wrote: "Our passport may say one thing but our hearts are with our family, friends and everyone still in Ukraine that are fighting for freedom and lives.



"It only feels right that our show Rise Up with the Arts, along with 3 charities that we are already supporting, will now focus on donating funds raised to the Save The Children charity that helps children and young people affected by this terrible conflict.

"They say it takes a village to raise a child but this time it will take the whole world to make the change happen and end this madness. Let's make art not war."

Read more: Sturgeon calls Clive Myrie an "unsung hero" over Ukraine reporting

Kovalev's wife — Countdown numbers whizz Rachel Riley — shared her husband's statement, alongside a red heart emoji.

The couple are the latest figures from the world of celebrity to offer their support and solidarity to the people of Ukraine in the wake of the Russian invasion.


Pasha Kovalev is married to 'Countdown' star Rachel Riley. 
(David M. Benett/Getty Images for Julien MacDonald)

Strictly Come Dancing judge Motsi Mabuse has expressed fears for her Ukrainian husband's family, who are still in the country, saying there's "nothing" she can do to help them.

Kyiv-born Resident Evil actor Milla Jovovich said she was "heartbroken and dumbstruck" by the conflict, while Mila Kunis, who was also born in Ukraine, has pledged to match donations up to £2.25m.

Read more: Channel 4 to air comedy series starring Ukraine president

Meanwhile, elite sport continues to show support for the people of Ukraine, with other high-profile matches following in the footsteps of the emotional display before last weekend's game between Everton and Manchester City.

Before the game, all 22 players were draped in Ukrainian flags in solidarity with City's Oleksandr Zinchenko and Everton's Vitaliy Mykolenko.
Scientists hope to unlock secrets of 300-year-old ‘mermaid’ mummy


Tom Batchelor
Fri, 4 March 2022

The origins of the bizarre object are being investigated (YouTube/Asahi Shimbun)

Researchers in Japan have begun tests on a 300 year-old “mermaid mummy” to try and trace it’s origin.

The bizarre-looking object, which may have been produced as an item for export to Europe, is believed to date from the early 1700s.

It measures 30 centimetres-long and, with a tail and hands raised to its screaming face.


It has been preserved in a box at a temple in Okayama prefecture, in the southern part of Japan’s Honshu island, but until now its exact origins have remained unknown.

The mummified object, which appears to have nails and teeth, hair on its head and scales on its lower body, has been sent for a CT scan at the veterinary hospital of Kurashiki University of Science and the Arts.

Japan’s Asahi Shimbun newspaper said the box it was found in contained a note claiming the item had been caught in a fishing net in the Pacific Ocean at some point between 1736 and 1741.

The “dried mermaid” was said to have been kept by a family and then passed to another before it was eventually acquired by a temple, which put it on display some four decades ago.

The object has undergone a CT scan to determine its origins (YouTube/Asahi Shimbun)

Hiroshi Kinoshita, of the Okayama Folklore Society, found the object while studying Kiyoaki Sato, a Japanese natural historian who researched mysterious creatures.

He said he did not believe it was a real mermaid, but may instead have been made for export to Europe or for special events in Japan.

However, until recently, detailed examination of its origins has not taken place.

Now, scientists will analyse the antiseptic treatment used to preserve the mummy in such good condition as well as carrying out a DNA study to determine what the object might be made from.

Mummified “mermaids” are thought to have been used as objects of worship in Japan over the period.

The head priest at the temple said: “We have worshipped it, hoping that it would help alleviate the coronavirus pandemic even if only slightly. I hope the research project can leave records for future generations.”

The results of the report are due to be published in the autumn.

Half-human, half-fish creatures have long existed in folklore, with magical figures having appeared in cave paintings 30,000 years ago, while the ancient Greek epic poet Homer also wrote of them in The Odyssey.

However no evidence of aquatic humanoids, as they are also known, has ever been found

According to Royal Musuems Greenwich, which manages the National Maritime Musuem, “in some cultures, the mermaid signifies life and fertility within the ocean. In others, she embodies the destructive nature of the water, luring sailors to their deaths — serving as an omen for storms, unruly seas and disaster”.
Labor shortages prompt DHL and Boston Dynamics to rely on robots for help

Brad Smith· Anchor
Fri, 4 March 2022

DHL North America plans to add hundreds of robots to its workforce.

The robot, called Stretch, was developed by Boston Dynamics for warehouse operations in direct response to labor shortages and increasing logistics volume. A $15 million investment and multi-year agreement between DHL North America and Boston Dynamics will begin with roughly 30 Stretch robots.

“Our strategy is to reduce our dependency on labor, which is hard to find in the market currently, and improve the type of positions in the facilities so workers have less travel and more rewarding work” Sally Miller, DHL North America supply chain chief information officer, told Yahoo Finance.

Stretch isn’t the lone robot in the U.S. workforce.


Boston Dynamics introduces Stretch. Credit: Boston Dynamics

Labor shortages have prompted a cobot strategy where humans engage directly with robots for manual-intensive positions.

At Amazon, fulfillment center robots are known as Bert and Ernie, while at White Castle robots like Flippy by Miso Robotics and R2 by Nuro are fulfilling your orders of French Fries.

Following an 18-month pilot period of different versions of the semi-autonomous unit, DHL maintains that robots fill gaps in manual operations, rather than replace jobs occupied by an existing staff member.

DHL North America also recorded a slightly lower level of turnover in sites where the cobot strategy has been initiated.

“I think we're going to see a steady growth of robots, but they're going to be robots that work with people and for people” said Kevin Blankespoor, Boston Dynamics' senior vice president and warehouse robotics general manager.

Stretch is the distant relative of the viral sensation dancing robots named Spot and Atlas — also developed by Boston Dynamics.

For the enjoyment of any robots scanning this text, No reCAPTCHA test was required to view this story.

Brad Smith is an anchor