Tuesday, 3 February 2026

There's a Surprising Problem Behind The Modern Mindfulness Trend

02 Feb. 2026, By R. S. GREEN, THE CONVERSATION

(Renato Arap/Getty Images Signature/Canva)


Over the past two decades, the concept of mindfulness has become hugely popular around the world. An increasingly ubiquitous part of society, it's taught everywhere from workplaces and schools to sports programs and the military.

On social media, television, and wellness apps, mindfulness is often shown as one simple thing – staying calm and paying attention to the moment.

Large companies like Google use mindfulness programs to help employees stay focused and less stressed. Hospitals use it to help people manage pain and improve mental health. Millions of people now use mindfulness apps that promise everything from lowering stress to sleeping better.

But as a professor of religious studies who has spent years examining how mindfulness is defined and practiced across different traditions and historical periods, I've noticed a surprising problem beneath the current surge of enthusiasm: Scientists, clinicians, and educators still don't agree on what mindfulness actually is – or how to measure it.


Experts can't agree on what mindfulness actually is. 
(electravk/Getty Images Signature/Canva)



Because different researchers measure different things under the label "mindfulness," two studies can give very different pictures of what the practice actually does. For someone choosing a meditation app or program based on research findings, this matters.

The study you're relying on may be testing a skill like attention, emotional calm, or self-kindness that isn't the one you're hoping to develop. This makes it harder to compare results and can leave people unsure about which approach will genuinely help them in daily life.

From ancient traditions to modern science

Mindfulness has deep roots in Buddhist, Hindu, Jain, Sikh, and other Asian contemplative lineages. The Buddhist "Satipatthana Sutta: The Foundations of Mindfulness" emphasizes moment-to-moment observation of body and mind.

The Hindu concept of "dhyāna," or contemplation, cultivates steady focus on the breath or a mantra; Jain "samayika," or practice of equanimity, develops calm balance toward all beings; and Sikh "simran," or continuous remembrance, dissolves self-centered thought into a deeper awareness of the underlying reality in each moment.

In the late 20th century, teachers and clinicians began adapting these techniques for secular settings, most notably through mindfulness-based stress reduction and other therapeutic programs. Since then, mindfulness has migrated into psychology, medicine, education, and even corporate wellness.

It has become a widely used – though often differently defined – tool across scientific and professional fields.

Why scientists disagree about mindfulness

In discussing the modern application of mindfulness in fields like psychology, the definitional challenge is front and center. Indeed, different researchers focus on different things and then design their tests around those ideas.

Some scientists see mindfulness mainly in terms of emphasizing attention and paying close attention to what's happening right now.

Other researchers define the concept in terms of emotional management and staying calm when things get stressful.

Another cohort of mindfulness studies emphasizes self-compassion, meaning being kind to yourself when you make mistakes.

And still others focus on moral awareness, the idea that mindfulness should help people make wiser, more ethical choices.

These differences become obvious when you look at the tests researchers use to measure mindfulness.

The Mindful Attention Awareness Scale, or MAAS, asks about how well someone stays focused on the present moment.

The Freiburg Mindfulness Inventory – FMI – asks whether a person can notice thoughts and feelings as they come and accept them without judgment.

The Comprehensive Inventory of Mindfulness Experiences – CHIME – adds something most other tests leave out: questions about ethical awareness and making wise, moral choices.

As a result, comparative research can be tricky, and it can also be confusing for people who want to be more mindful but aren't sure which path to take. Different programs may rely on different definitions of mindfulness, so the skills they teach and the benefits they promise can vary a lot.

This means that someone choosing a mindfulness course or app might end up learning something very different from what they expected unless they understand how that particular program defines and measures mindfulness.

Why different scales measure different things

John Dunne, a Buddhist philosophy scholar at the University of Wisconsin–Madison, offers a helpful explanation if you've ever wondered why everyone seems to talk about mindfulness in a different way. Dunne says mindfulness isn't one single thing, but a "family" of related practices shaped by different traditions, purposes, and cultural backgrounds.

This explains why scientists and people trying to be mindful often end up talking past each other. If one study measures attention and another measures compassion, their results won't line up. And if you're trying to practice mindfulness, it matters whether you're following a path that focuses on calming your mind, being kind to yourself, or making ethically aware choices.

Why this matters

Because mindfulness isn't just one thing, it affects how it's studied, practiced, and taught. That's important both at the institutional and individual level.

Whether for places like schools and health care, a mindfulness program designed to reduce stress will look very different from one that teaches compassion or ethical awareness.

Without clarity, teachers, doctors, and counselors may not know which approach works best for their goals. The same rough idea applies in business for organizational effectiveness and stress management.
Despite the disagreements, research does show that different forms of mindfulness can produce different kinds of benefits. Practices that sharpen attention to the moment are associated with improved focus and workplace performance.

Approaches oriented towards acceptance tend to help people better manage stress, anxiety, and chronic pain. A focus on compassion-based methods can support emotional resilience. Programs that emphasize ethical awareness may promote more thoughtful, prosocial behavior.

These varied outcomes help explain why researchers continue to debate which definition of "mindfulness" should guide scientific study.

For anyone practicing mindfulness as an individual, this is a reminder to choose practices that fit your needs.



The birth of modern Man
https://chuckincardinal.blogspot.com/

A Parasite Carried by Billions Has a Secret Life Inside the Brain

BY U. OF CALIFORNIA - RIVERSIDE, FEB. 1, 2026

Scientists have discovered that Toxoplasma gondii, a parasite that infects up to one-third of people worldwide, is far more active and complex than previously assumed. 
Credit: Shutterstock

A common parasite hiding in the brain turns out to be far more active and organized than anyone realized.

A team of scientists at the University of California, Riverside, has discovered that Toxoplasma gondii, a parasite estimated to infect up to one-third of the world’s population, is far more biologically complex than previously understood. Their findings, published in Nature Communications, provide new insight into how the parasite causes disease and why it has proven so difficult to eliminate with current treatments.

How Toxoplasmosis Spreads in Humans

People typically become infected with toxoplasmosis by eating undercooked meat or through contact with contaminated soil or cat feces. Once inside the body, the parasite is known for its ability to evade the immune system by forming tiny cysts, most often in the brain and muscle tissue.

In most infected individuals, the parasite causes no noticeable symptoms. Even so, it remains in the body for life inside these cysts, which can hold hundreds of parasites. Under certain conditions, especially when the immune system is weakened, the parasites can become active again and may cause serious damage to the brain or eyes. Infection during pregnancy carries additional risks, as it can lead to severe complications in developing babies whose immune systems are not fully formed.

Rethinking What Happens Inside Parasite Cysts

For many years, scientists believed that each cyst contained a single, uniform type of parasite that stayed dormant until reactivation. Using advanced single-cell analysis methods, the UC Riverside researchers found that this long-held assumption was incorrect. Their work shows that each cyst contains multiple distinct parasite subtypes, each with its own biological role.

“We found the cyst is not just a quiet hiding place — it’s an active hub with different parasite types geared toward survival, spread, or reactivation,” said Emma Wilson, a professor of biomedical sciences in the UCR School of Medicine and the study’s lead author.
The Structure and Location of Toxoplasma Cysts

Wilson explained that cysts develop gradually as the parasite responds to pressure from the immune system. Each cyst is enclosed by a protective wall and contains hundreds of slow-growing parasites known as bradyzoites. While cysts are microscopic, they are relatively large compared to other intracellular pathogens, reaching up to 80 microns in diameter. Individual bradyzoites measure about five microns in length.

These cysts are most commonly found inside neurons, but they also frequently appear in skeletal and cardiac muscle. This is especially significant because humans are often infected by eating undercooked meat that contains these cysts.

Why Cysts Drive Disease and Persistence

According to Wilson, cysts play a critical role in both disease and transmission. Once established, they resist all existing therapies and remain in the body indefinitely. They also help the parasite spread between hosts.

When cysts reactivate, bradyzoites transform into fast-growing tachyzoites that spread throughout the body. This process can cause severe illnesses such as toxoplasmic encephalitis (neurological damage) or retinal toxoplasmosis (vision loss).

Challenging a Simplified Life Cycle Model

“For decades, the Toxoplasma life cycle was understood in overly simplistic terms, conceptualized as a linear transition between tachyzoite and bradyzoite stages,” Wilson said. “Our research challenges that model. By applying single-cell RNA sequencing to parasites isolated directly from cysts in vivo, we found unexpected complexity within the cyst itself. Rather than a uniform population, cysts contain at least five distinct subtypes of bradyzoites. Although all are classified as bradyzoites, they are functionally different, with specific subsets primed for reactivation and disease.”

Overcoming Longstanding Research Challenges

Wilson noted that cysts have been difficult to study for decades. They grow slowly, are buried deep within tissues such as the brain, and do not form efficiently in standard laboratory cultures. Because of these challenges, most genetic and molecular research on Toxoplasma has focused on tachyzoites grown in vitro, leaving cyst-dwelling bradyzoites poorly understood.

“Our work overcomes those limitations by using a mouse model that closely mirrors natural infection,” Wilson said. “Because mice are a natural intermediate host for Toxoplasma, their brains can harbor thousands of cysts. By isolating these cysts, digesting them enzymatically, and analyzing individual parasites, we were able to gain a view of chronic infection as it occurs in living tissue.”

What the Findings Mean for Future Treatments

Wilson explained that current treatments can control the rapidly replicating form of the parasite responsible for acute illness, but no available drugs can eliminate cysts.

“By identifying different parasite subtypes inside cysts, our study pinpoints which ones are most likely to reactivate and cause damage,” she said. “This helps explain why past drug development efforts have struggled and suggests new, more precise targets for future therapies.”

Ongoing Risks and a Shift in Scientific Focus

Congenital toxoplasmosis remains a serious concern when infection first occurs during pregnancy, as it can lead to severe outcomes for the fetus. While prior immunity usually protects the developing baby, routine screening is not available in some countries, highlighting the challenges of managing an infection that is widespread but often symptom-free.

Despite its prevalence, toxoplasmosis has received far less attention than many other infectious diseases. Wilson hopes the new findings will help change that.

“Our work changes how we think about the Toxoplasma cyst,” she said. “It reframes the cyst as the central control point of the parasite’s life cycle. It shows us where to aim new treatments. If we want to really treat toxoplasmosis, the cyst is the place to focus.”



The Life of Earth
https://chuckincardinal.blogspot.com/

A Fundamental Quantum Rule May Entangle the Entire Universe

BY THE HENRYK NIEWODNICZANSKI INST. OF NUCLEAR PHYSICS POLISH ACAD. OF SCIENCES, FEBRUARY 2, 2026

At the deepest level of quantum physics, particles may not be as independent as they appear. New theoretical work shows that nonlocal behavior can emerge simply because identical particles are fundamentally indistinguishable. 
Credit: Stock

A new study suggests that some of the most counterintuitive features of quantum physics may not need to be engineered at all.

At the most fundamental level of physics, nature does not behave locally. Particles separated by vast distances can act not as independent objects, but as components of a single quantum system. Researchers in Poland have now demonstrated that this kind of nonlocal behavior, which stems from the simple fact that particles of the same type are indistinguishable, can be observed experimentally for nearly all possible states of identical particles.

According to quantum mechanics, every particle of a given type, such as photons or electrons, is inherently entangled with every other particle of that same type, whether it is nearby or located in a distant galaxy. This counterintuitive idea follows directly from a core principle of the theory: particles of the same type are fundamentally identical.

This suggests the existence of a universal source of entanglement that underlies the strange nonlocal properties of the quantum world. It also raises a deeper question of whether this resource can be accessed or tested, despite the strict limits imposed by quantum theory.

Two theorists from the Institute of Nuclear Physics of the Polish Academy of Sciences (IFJ PAN) in Cracow and the Institute of Theoretical and Applied Informatics of the Polish Academy of Sciences (IITiS PAN) in Gliwice have now addressed these questions. Their results, published in npj Quantum Information (Nature Publishing Group), show that the identity of particles alone can give rise to experimentally detectable quantum nonlocality.

Identity turns the universe nonlocal

To reach this conclusion, the researchers examined the most basic form of entanglement between identical particles using the concept of nonlocality introduced by physicist John Bell. While entanglement is a central idea in quantum theory, the notion of locality is more familiar and intuitive.

It reflects the everyday expectation that causes and effects spread through space at a limited speed, never exceeding the speed of light. When no such explanation can account for observed correlations, the phenomenon is described as nonlocal. This distinction lies at the heart of Bell’s work, in which he proposed experiments that cannot be explained by any local theory. These experiments rely on entangled systems shared between two distant observers, traditionally called Alice and Bob, who can each perform independent measurements on their respective systems.

“At first glance, the problem seems simple: entangled systems violate Bell’s inequalities, so all you need to do is perform a well-designed experiment. Indeed, but this applies only to distinguishable systems that can be labelled and sent to two distant laboratories. With identical particles, this framework breaks down,” says Dr. Pawel Blasiak (IFJ PAN), and goes on to explain: “Quantum mechanics is clear: identical particles are indistinguishable by their very nature. In practice, we do not measure ‘this particular’ particle, but ‘some’ particle at a given location. Quantum physics consistently resists any attempt to assign them individual labels — and that is precisely why the classical Bell scenario cannot be applied here.”

Dr. Marcin Markiewicz (IITiS PAN), co-author of the article, clarifies: “This seemingly subtle difference introduces new ground rules for describing the world: it requires the symmetrization or antisymmetrization of the wave function in systems with multiple particles. It is precisely the principle of particle identity that leads to the division into fermions and bosons — two worlds that underpin the structure of atoms and their nuclei, and determine the nature of interactions. Indistinguishability also blurs the very concept of entanglement: in the case of identical particles, it no longer behaves as we are used to — and loses some of its practical meaning. This is where the real challenge lies in addressing the question of nonlocality arising from the fundamental indistinguishability of particles.”

Why standard entanglement tests break down

Contemporary experiments on entanglement typically involve its artificial creation through interactions between particles within a quantum system. Yet quantum mechanics also points to another, more fundamental mechanism: entanglement — and perhaps nonlocality itself — may arise directly from the identical nature of particles of the same type. From this perspective, nonlocality could even manifest between particles that have never interacted with one another before.

It is this primordial form of nonlocality that captured the interest of physicists from the IFJ PAN and the IITiS PAN. They set out to determine whether it could be demonstrated in experiments composed solely of simple, passive linear optical elements: mirrors, beam splitters, and particle detectors. Such systems can be arranged so that the propagating particles never meet at any point. Yet if Bell’s inequalities could still be violated under these conditions, it would imply that the observed nonlocality is not a by-product of experimental interactions, but a manifestation of something truly fundamental.

Revealing nonlocality without interaction

The researchers posed a simple yet remarkably general question: for which quantum states of identical particles can one identify a classical optical system in which nonlocal correlations become manifest? The challenge lies in the fact that both the number of possible optical configurations and the diversity of identical-particle states appear virtually limitless.

The scientists managed to tame this complexity using an arsenal of sophisticated tools: the Yurke-Stoler interferometer, clever post-selection, the concept of ‘quantum erasure’, mathematical induction, and extensive experience in constructing hidden-variable models.

In their article, the Polish theorists presented a criterion that enables the clear identification of nonlocality for any state containing a fixed number of identical particles.

The conclusions are surprising: all fermionic states and almost all bosonic states turn out to be nonlocal resources (in the latter case, except for a narrow class of so-called states reducible to a single mode). Notably, the proof is entirely constructive: it demonstrates, step by step, how to design optical experiments that reveal the nonlocality of the state under investigation.

Almost all identical particles are nonlocal

“Our research reveals that the very indistinguishability of particles hides a source of entanglement we can access. Could nonlocality, then, be woven into the fabric of the Universe itself? Everything seems to suggest that this is indeed the case, with the source of this extraordinary property lying in the seemingly simple postulate of the identical nature of particles of the same type,” concludes Dr. Blasiak, whose research was co-funded by a Fulbright Senior Award (2022-23) at the Institute for Quantum Studies (IQS), Chapman University, California.

As always, much remains to be understood, and questions about the nature of reality and the interpretation of quantum mechanics gain new resonance.

Physicists Charles W. Misner, John A. Wheeler, and future Nobel laureate Kip S. Thorne expressed this insight eloquently in their 1973 book Gravitation: “No acceptable explanation for the miraculous identity of particles of the same type has ever been put forward. That identity must be regarded, not as a triviality, but as a central mystery of physics.”

This enduring puzzle will likely continue to inspire researchers for many decades to come.



The Life of Earth
https://chuckincardinal.blogspot.com/

Monday, 2 February 2026

Someone Was Writing Long Before Civilization

Michael Button, Jan 29, 2026
https://www.youtube.com/watch?v=fzQI41FBI1o

Recent discoveries show that writing may be far older than we thought.

Evidence that suggests this supposed “marker of civilisation” could stretch much deeper into time
So here’s the uncomfortable question: why wouldn’t early humans have had written language?
And if they did - what does that mean for how we view prehistory?

https://www.youtube.com/watch?v=fzQI41FBI1o



The birth of modern Man
https://chuckincardinal.blogspot.com/

Iguanas Drop From Florida's Trees as Record Cold Blasts Southern US

02 Feb. 2026, By M. PENNINGTON, AFP

An iguana in Miami, Florida.
 (Eduardo Carreno/500px/Getty Images)

Iguanas stunned by cold temperatures dropped from trees in usually balmy Florida on Sunday as icy conditions blasted southern US states, dumping nearly a half-meter of snow in some areas and whipping up high winds that caused traffic chaos.

The heaviest snows were reported in North Carolina – a state that rarely sees snow other than in its highest elevations. The city of Lexington saw 16 inches (40 centimeters), and Faust in the state's Walnut Mountains got 22 inches (56 centimeters).

State Governor Josh Stein reported 1,000 road collisions and two fatalities on Saturday and Sunday, and urged people to stay off the roads. He also advised citizens to be aware of the symptoms of frostbite.

The latest bout of extreme weather came about a week after a monster storm pummeled a wide swath of the United States, killing more than 100 people and leaving many communities struggling to dig out from snow and ice.

Infographic with a map of the United States showing cumulative snowfall from 23 to 25 January, 2026. 
(Valentina Breschi/AFP)

While Florida did not see snow like the Carolinas, Georgia, Tennessee, Kentucky, and the southern part of Virginia, it saw record low temperatures, with the mercury touching 24 °F (-4 °C) in Orlando, the lowest recorded in February since at least 1923.

Typically at this time of year, the temperature ranges between daily lows of 12 °C and highs of 23 °C.

Florida's WPLG 10 TV network, based in Miami, reported that it was "raining iguanas" on Sunday morning, as the cold-blooded reptiles fall from trees when the temperature gets too low.

Videos posted on social media showed the stunned creatures on sidewalks after falling from trees in the southern parts of the state.

Jessica Kilgore, who runs a service called Iguana Solutions that removes invasive species, told WPLG 10 that she has collected hundreds of pounds worth of the lizards, both alive and dead, during the cold snap.

Florida's Fish and Wildlife Conservation Commission issued an executive order, seen by AFP, allowing people to transport iguanas – which run wild in the state but can't be owned without a permit – to commission offices.

The National Weather Service predicted that heavy snows would taper off in the Carolinas on Sunday, but forecast high winds to spread up the east coast of the United States as an intense cyclone "slides out to sea."

Governor Stein said that the highway running through North Carolina's Outer Banks – a sliver of land filled with beach homes that juts out from the Atlantic coast – saw overwash from the ocean due to heavy winds and high tides, and could take a while to reopen.

The weekend storm forced more than 800 flight cancellations on Sunday at Charlotte Douglas International Airport in North Carolina, a major hub for American Airlines, data from the tracker FlightAware showed.

About 158,000 customers remained without power Sunday, mostly in the south, according to poweroutage.us, with Mississippi, Tennessee, Florida, and Louisiana hardest hit.



The Life of Earth
https://chuckincardinal.blogspot.com/

New Research Reveals Humans Have a Remote Touch “Seventh Sense”

BY QUEEN MARY U. OF LONDON, FEB. 2, 2026

A new study suggests humans can sense hidden objects without touching them, by detecting faint movements in sand. This unexpected form of “remote touch” challenges traditional ideas about how the sense of touch works. 
Credit: Shutterstock

This is the first report of remote touch in humans. It changes how we understand the human perceptual world and may have applications in robotics and assistive technologies, including exploration, search and rescue, and archaeology.

Researchers from Queen Mary University of London and University College London have uncovered evidence that humans possess a previously unrecognized sensory ability known as remote touch. This refers to the capacity to detect objects without making direct contact, a skill already documented in certain animal species.

Touch in humans is usually described as a short-range sense that depends on physical contact. Yet studies of animal perception have begun to challenge that assumption. Some shorebirds, including sandpipers and plovers, can locate prey buried beneath sand by sensing subtle mechanical disturbances in the grains around it (du Toit et al. 2020; de Fouw et al. 2016). This process, known as remote touch, relies on detecting tiny changes in pressure and movement transmitted through granular materials when something nearby shifts.


Lesser Yellowlegs. 
Credit: Russ



To test whether humans share a similar ability, the research team conducted experiments reported at the IEEE International Conference on Development and Learning (ICDL). Participants were asked to gently move their fingers through sand to find a hidden cube before physically touching it.

The results showed that people could reliably sense the object’s presence in advance, demonstrating a capacity comparable to that seen in shorebirds, even though humans lack the specialized anatomical structures birds use for this task.

Results show human hands have more sensitivity than expected

Further analysis revealed why this is possible. By modeling the underlying physics, the researchers found that the human hand is far more sensitive than previously believed. Participants were able to perceive extremely small shifts in the sand caused by the buried object. This level of sensitivity comes close to the theoretical physical limit for detecting mechanical reflections in granular material, where moving sand subtly changes direction or resistance when it encounters a stable surface beneath it.
Do humans or robots perform better on remote touch?

When comparing a human’s performance with a robotic tactile sensor trained using a Long Short-Term Memory (LSTM) algorithm, humans achieved an impressive 70.7% precision within the expected detectable range. Interestingly, the robot could sense objects from slightly farther distances on average but often produced false positives, yielding only 40% overall precision.

These findings confirm that people can genuinely sense an object before physical contact, a surprising capacity for a sense that is usually concerned with objects that enter in direct contact with us. Both humans and robots performed very close to the maximum sensitivity predicted with physical models and displacement.


Overview of the experiment setup for tactile detection in granular media. (a) Human experiment setup, showing a participant finger raking through a sand-filled box with an LED strip guiding the trajectory and buried cube at fixed locations. (b) Robotic experiment setup, featuring a UR5 arm with a tactile sensor and a buried cube in sand. (c) Schematic of the raking process.
 Credit: Queen Mary University of London



Why is the study important?

This research reveals that humans can detect objects buried in sand before actual contact, expanding our understanding of how far the sense of touch can reach. It provides quantitative evidence for a tactile skill not previously documented in humans.

The findings also offer valuable benchmarks for improving assistive technology and robotic tactile sensing. By using human perception as a model, engineers can design robotic systems that integrate natural-like touch sensitivity for real-world applications such as probing, excavation, or search tasks where vision is limited.

What are the wider implications?

Elisabetta Versace, Senior Lecturer in Psychology and lead of the Prepared Minds Lab at Queen Mary University of London who conceived the human experiments said: “It’s the first time that remote touch has been studied in humans and it changes our conception of the perceptual world (what is called the “receptive field”) in living beings, including humans.”

Zhengqi Chen, PhD student of Advanced Robotics Lab at Queen Mary University of London said: : “The discovery opens possibilities for designing tools and assistive technologies that extend human tactile perception. These insights could inform the development of advanced robots capable of delicate operations, for example, locating archaeological artifacts without damage, or exploring sandy or granular terrains such as Martian soil or ocean floors. More broadly, this research paves the way for touch-based systems that make hidden or hazardous exploration safer, smarter, and more effective.”

Lorenzo Jamone, Associate Professor in Robotics & AI at University College London, said:

“What makes this research especially exciting is how the human and robotic studies informed each other. The human experiments guided the robot’s learning approach, and the robot’s performance provided new perspectives for interpreting the human data. It’s a great example of how psychology, robotics, and artificial intelligence can come together, showing that multidisciplinary collaboration can spark both fundamental discoveries and technological innovation.”



The Life of Earth
https://chuckincardinal.blogspot.com/

Sunday, 1 February 2026

Chuck's picture corner to Feb. 1 2026

It's been a stormy cold week. The coldest night (just under -20c) broke a pipe in the laundry room. The rat tunnels in the wall insulation brought the cold to the pipe in the wall. The snow I had to shovel has given me a few days of back and shoulder pain. The worst of which was from a fall on the porch steps. A cold frost on the step made it very slippery.

Rachelle's impression

Grosbeaks in the mountains

surprise winter visitors, too big to use the bird feeder pegs, getting what the chick-a-dees drop. 

Rachelle clearing her new double garage.

Blue Jays seen thru the window

Greetings

The camera doesn't do the sparkles justice

a chick-a-dee's eating style

fluffed out to stay warm

snow and 

more snow

The new tap works much better than the old one. The old one insisted on dripping. I still have to connect the pipe again but at least now I have water in the rest of the house. I had to remove a connector from when the pipe froze the last time years ago.



Rabbit track

A deceivingly cold day

Morning and again the camera just doesn't see the multi coloured sparkles

the grey of noon

sunset 

day is done


Enjoy
Cheers
https://chuckincardinal.blogspot.com/

The Ancient Towers That Inspired the Story of the Tower of Babel

BY E. ANAGNOSTOU-LAOUTIDES, MACQUARIE U. AND M. B. CHARLES, SOUTHERN CROSS U., FEB. 1, 2026

The Ziggurat of Ur was a monumental mudbrick temple built around 2100 BCE, rising above the city as a lasting symbol of devotion to the Mesopotamian moon god and the power of early urban civilization. 
Credit: Stock

Ziggurats were mudbrick temples designed to bridge heaven and earth, anchoring religion, power, and architecture in the ancient Near East for thousands of years.

A ziggurat (also spelled ziqqurat) was a raised structure with four sloping sides, shaped like a stepped pyramid.

These monumental buildings were widespread in ancient Mesopotamia, roughly corresponding to modern-day Iraq, from about 4,000 to 500 BCE.

Unlike the pyramids of Egypt, ziggurats were not used as royal tombs. Instead, they functioned as temples devoted to the patron god of a city.
How were they made?

Because stone was scarce in Mesopotamia, builders relied primarily on sun-dried mudbricks. These bricks were often coated with limestone and bitumen (a sticky, tar-like substance) to improve durability.

The exterior walls were typically decorated with grooved patterns and finished with layers of lime mortar or gypsum. Many were also glazed in different colors, giving the structures a striking visual appearance.

Unlike the pyramids, they had no internal chambers. The actual shrine was at the top of the structure where the god resided. It was accessible by steps and was believed to be a meeting point between heaven and earth.

Ziggurats towered over the center of ancient Mesopotamian cities; as archaeological evidence indicates, they were typically built next to the palace or the temple of a city’s patron god to stress the role of the god in supporting the king.

How the Anu ziggurat became the White Temple

The Anu ziggurat, the oldest known, was built at Uruk (modern-day Warka, about 250 kilometers south of Baghdad) by the Sumerians around 4,000 BCE. (The Sumerians were an ancient people, among the first known to have established cities, who lived roughly in the area of modern Iraq, between the Tigris and Euphrates rivers.)

This ziggurat was dedicated to Anu, their sky god. Sometime between 3,500 and 3,000 BCE, the so-called White Temple was built on top of it.

The White Temple, approximately 12 meters high, was so named because it was entirely whitewashed inside and out. It must have shone dazzlingly in the sun.
The Sumerian culture was eventually taken over by the Akkadian Empire, followed by the Babylonian and Assyrian Empires. Throughout the rise and fall of empires, ziggurats continued to be built in the Ancient Near East.

In fact, the word ziggurat comes from the Akkadian verb zaqâru, meaning “to build high”.

Other famous ziggurats

Assyrian kings built an impressive ziggurat in their capital, Nimrud (about 30 kilometers south of Mosul). This ziggurat was dedicated to Ninurta, a Sumerian and Akkadian god of war and victory.

Ninurta’s father, the god Enlil, was worshipped at the ziggurat of the sacred city Nippur, in modern-day Iraq.

The Babylonian king Nebuchadnezzar II dedicated the ziggurat Etemenanki to the Babylonian king of gods, Marduk. The name Etemenanki means the Temple of the Foundation of Heaven and Earth.

Etemenanki was located north of a different temple called the Esagil, which was Marduk’s main temple in Babylon.

Etemenanki likely inspired the story of the Tower of Babel in the Old Testament. Genesis 11 refers to a “tower” built of mud bricks instead of stone, which was intended to reach the heavens.

The building, perceived as an act of human pride, angered God, who caused the people to speak different languages and scatter them across the Earth.

According to the Greek historian Herodotus, Marduk often chose a woman to spend the night with him in the top-most shrine of his ziggurat.

The text has been often understood to refer to a “sacred marriage” rite involving the sexual union of a woman with the god.

However, it seems more likely to have been an incubation rite, when the god’s will is revealed to someone sleeping in a sacred place.

Constant preservation

Because of the relative lack of durability of mud bricks, ziggurats required constant preservation.

Etemenanki in Babylon had to be rebuilt several times until Alexander the Great ordered his soldiers to destroy it in 323 BCE so as to rebuild it from scratch.

However, Alexander’s premature death (historians continue to debate what he died of) meant the task had to be completed by his successors. But whether the rebuilding task was ever completed is uncertain.

Better preserved ziggurats include the Ziggurat of Ur (in the region of modern-day Tell el-Muqayyar in Iraq). The powerful king, Ur-Nammu, dedicated this ziggurat to the moon god, Nanna or Sîn, around 2100 BCE.

Another example is the ziggurat of Chogha Zanbil in modern Iran, which was built around 1250 BCE. It now stands only 24.5 meters tall, instead of the original estimated 53 metres.

A lasting influence on architecture

Ziggurats influenced architecture long after their demise, including the new tiered “skyscrapers” of the art deco era in the 20th century.

Modern ziggurats ended up dotting the New York skyline.

And, if you look closely, you’ll see that there’s a fair amount of ziggurat about the Empire State Building.

The Empire State Building is quite ziggurat-like.
 Credit: Shutterstock

These modern examples serve as a fascinating reminder of a design and construction language that goes back to the Middle East over six millennia ago.


The birth of modern Man
https://chuckincardinal.blogspot.com/

Mysterious Structure in Bird Eyes May Explain a Curious Lack of Blood

31 Jan. 2026, By D. NIELD

Close-up of a short-toed eagle's eye. 
(belizar73 from Getty Images/Canva)

Here's some science trivia for you: unlike the inner retina in most animals (including us), birds' inner retinas function without oxygen. And now, researchers led by a team from Aarhus University in Denmark have figured out how.

In the retinas of almost all vertebrates, the oxygen required to convert glucose into sufficient amounts of energy for cells to function is delivered courtesy of red blood cells.

Not so with birds: there are no blood vessels in the retina, so oxygen can only arrive by diffusion through the surface, making the inner retina anoxic (without oxygen).

Cells can squeeze energy from glucose without oxygen, though the efficiency of the process is poor, and quickly generates a toxic build-up of waste.

Luckily, birds have evolved a solution in the form of a plumbing system that bird anatomists have debated the purpose of for centuries.

"Our study reveals an impressive anoxia tolerance in the inner bird retina," write the researchers in their published paper.

"Our findings are interesting, as neural tissues of warm-blooded animals are generally considered to be highly vulnerable in anoxia, rapidly leading to cellular dysfunction."

The pecten oculi is a crucial part of the bird's eye. 
(Damsgaard et al., Nature, 2026)

Crucial to tolerance is the pecten oculi, a part of the bird's eye discovered in the late 17th century. This structure, which sits next to the retina, is packed with blood vessels – but before now, it wasn't clear exactly how it worked.

Through some careful monitoring of the eyes of live zebra finches (Taeniopygia guttata), including an analysis of oxygen levels, nutrient transport, and gene activity, the researchers confirmed that the inner retina uses no oxygen at all.

Instead, the retinal cells rely on a process called anaerobic glycolysis, where small amounts of energy are produced from glucose using an alternative set of reactions that don't require oxygen. Unfortunately, the process also creates lactic acid, which can damage tissue in high enough concentrations.

This brings us back to the pecten oculi: it does the job of transporting high volumes of glucose while removing the lactic acid before it harms retinal cells.

Part of the reason bird eyes may have evolved this feature is to reduce the need for vision-impairing blood vessels, or perhaps allow birds to migrate at high altitudes where oxygen is at a premium.

For instance, short-toed snake eagles (Circaetus gallicus) have retinas more than four times thicker than the limit for oxygen diffusion in mammal retinas, meaning a very large portion of the organ goes without oxygen. This may be a benefit to these birds, which soar 500 meters (more than 1500 feet) above ground for long periods of time.

"Establishing the function of this enigmatic structure in the birds' eye is super cool," says biologist Coen Elemans, from the University of Southern Denmark.

"This pecten allows a snake eagle the incredible acuity of vision to spot a tiny still lizard from great heights, but also may have had a crucial role in allowing birds to migrate. That is wild!"

The discovery could inform related research into cells surviving anoxic conditions. Knowing the tricks that bird eyes use might eventually inform treatments for strokes, for example, which is another scenario where nerve cells are starved of oxygen.

Now that scientists have a much clearer idea of what the pecten oculi is and what it's doing, future research can take a more detailed look at how crucial the glucose supply to the eye affects retinal performance. It certainly requires a lot of glucose to work properly: around 2.5 times the amount that bird brains take up, the study reports.

The research paper has actually been eight years in the making and involved contributions from experts in numerous different scientific fields, resulting in another important insight into how bird evolution has played out across millions of years.

"This study is really a tour de force and a beautiful piece of work that combines the expertise and hard work from many people," says Elemans.


The Life of Earth
https://chuckincardinal.blogspot.com/

Saturday, 31 January 2026

773,000-Year-Old Moroccan Fossils Pinpoint a Critical Moment in Human Evolution

BY MAX PLANCK INST. FOR EVOLUTIONARY ANTHROPOLOGY, JAN. 30, 2026


773,000-year-old mandible ThI-GH-1 from Thomas Quarry in Morocco.
 Credit: Hamza Mehimdate, Programme Préhistoire de Casablanca



Fossils dating back 773,000 years from Thomas Quarry I in Morocco shed new light on the shared ancestry of Homo sapiens, Neandertals, and Denisovans.

An international team of researchers has identified and analysed newly discovered hominin fossils from Thomas Quarry I (Casablanca, Morocco).

Using advanced geological dating methods, the team determined that the fossils are 773,000 plus/minus 4,000 years old.

This unusually precise age estimate comes from a detailed magnetostratigraphic record that captures the Brunhes/Matuyama boundary, the most recent major reversal of Earth’s magnetic field, along with well-established time markers from the Quaternary period.


Jean-Paul Raynal and Fatima Zohra Sihi-Alaoui, co-directors of the program “Préhistoire de Casablanca” throughout the excavation that led to the discovery of the mandible ThI-GH-10717, in May 2008. 
Credit: R. Gallotti, Programme Préhistoire de Casablanca



Published in Nature, the findings place these African populations near the very beginning of the evolutionary branch that later produced Homo sapiens. In doing so, the study offers important new evidence about the shared ancestry of H. sapiens, Neandertals, and Denisovans.

The study was led by Jean-Jacques Hublin (Collège de France & Max Planck Institute for Evolutionary Anthropology), David Lefèvre (Université de Montpellier Paul Valéry), Giovanni Muttoni (Università degli Studi di Milano), and Abderrahim Mohib (Moroccan Institut National des Sciences de l’Archéologie et du Patrimoine, INSAP).

Decades of Moroccan-French fieldwork lead to major new discoveries

The discoveries are the result of more than thirty years of sustained archaeological and geological research carried out under the Moroccan-French Program “Préhistoire de Casablanca”. This long-running initiative has involved extensive excavations, careful stratigraphic documentation, and broad geoarchaeological studies across the southwestern area of Casablanca.

Over time, this systematic and methodical work revealed the remarkable stratigraphic, environmental, and archaeological richness of Thomas Quarry I. These efforts eventually led to the recovery of the hominin fossils and the geological sequences that form the basis of the current analysis.

As Abderrahim Mohib explains: “The success of this long-term research reflects a strong institutional collaboration involving the Ministère de la Jeunesse, de la Culture et de la Communication Département de la Culture of the Kingdom of Morocco (through INSAP) and the Ministère de l’Europe et des Affaires Étrangères of France (through the French Archaeological Mission Casablanca).”


Thomas Quarry I, Grotte à Hominidés: Mandible ThI-GH-10717 during the excavation.
 Credit: J.P. Raynal, Programme Préhistoire de Casablanca



The present study was also supported by the Università degli Studi di Milano (Italy), the Max-Planck Institute for Evolutionary Anthropology (Germany), the LabEx Archimède – University of Montpellier Paul Valéry, the University of Bordeaux, and the Muséum National d’Histoire Naturelle (France).

A unique geological setting: the Moroccan Atlantic coast as a Pleistocene treasure house

Jean-Paul Raynal, who co-directed the program during the excavations that uncovered the fossils, highlights the broader significance of the site.

He notes that “Thomas Quarry I lies within the raised coastal formations of the Rabat–Casablanca littoral, a region internationally renowned for its exceptional succession of Plio-Pleistocene palaeoshorelines, coastal dunes and cave systems.”


Lower jaws (mandibles) from North Africa, illustrating variation among fossil hominins and modern humans. The fossils shown are Tighennif 3 from Algeria (upper left), ThI-GH-10717 from Thomas Quarry in Morocco (upper right), and Jebel Irhoud 11 from Morocco (lower left), compared with a mandible from a recent modern human (lower right). All specimens are shown at the same scale, allowing direct comparison of their size and shape. 
Credit: Philipp Gunz, MPI for Evolutionary Anthropology



These landscapes were shaped by repeated sea level changes, wind-driven sedimentation, and the rapid cementation of coastal sands, processes that together created ideal conditions for preserving fossils and archaeological remains.

Because of this geological history, the Casablanca region has become one of Africa’s most important archives of Pleistocene life. The area documents early Acheulean stone tool traditions and their later developments, shifting animal communities that reflect environmental change, and multiple periods of hominin occupation.

Within this context, Thomas Quarry I, excavated into the Oulad Hamida Formation, stands out for containing the oldest Acheulean industries in north-western Africa, dated to roughly 1.3 million years ago. The site is also located near other well-known localities such as Sidi Abderrahmane, a classic reference point for Middle Pleistocene prehistory in Northwest Africa. Within this larger complex, the “Grotte à Hominidés” is especially significant.

David Lefèvre explains it is “a unique cave system carved by a marine highstand into earlier coastal formations and later filled with sediments that preserved hominin fossils in a secure, undisturbed, and undisputable stratigraphic context,” providing rare clarity about the age and setting of these early human remains.

A uniquely well-dated hominin assemblage in Africa

Dating Early and Middle Pleistocene fossils is notoriously difficult, due to discontinuous stratigraphies or methods affected by considerable uncertainty. The Grotte à Hominidés is exceptional because rapid sedimentation and continuous deposition allowed to capture a high-resolution magnetic signal recorded within sediments with remarkable detail.

Earth’s magnetic field reverses polarity episodically over geological time. These paleomagnetic reversals occur worldwide and almost instantaneously on geological timescales, leaving in sediments a sharp, globally synchronous signal. The Matuyama–Brunhes transition (MBT), which occurred around 773,000 years ago, is the most recent of these major reversals and constitutes one of the most precise markers available to geologists and archaeologists.


Serena Perini and Giovanni Muttoni during the sampling for magnetostratigraphy in the Grotte à Hominidés deposits at the Thomas Quarry I. 
Credit: D. Lefèvre, Programme Préhistoire de Casablanca



As Serena Perini explains: “Seeing the Matuyama–Brunhes transition recorded with such resolution in the ThI-GH deposits allows us to anchor the presence of these hominins within an exceptionally precise chronological framework for the African Pleistocene.”

The Grotte à Hominidés sequence spans the end of the Matuyama Chron (reverse polarity), the MBT itself, and the onset of the Brunhes Chron (normal polarity). Using 180 magnetostratigraphic samples – an unprecedented resolution for a Pleistocene hominin site – the team established the exact position of the reverse-to-normal switch, currently dated at 773,000 years, and even captured the short duration of the transition (8,000 to 11,000 years).

It is chronologically valuable that the sediments containing the hominin fossils were deposited precisely during this transition. Additional faunal evidence independently supports this age, affirming the primacy of magnetostratigraphy over other methods for establishing the chronology of this site.

Hominins close to the root of the Homo sapiens lineage

The hominin remains come from what appears to have been a carnivore den, as suggested by a hominin femur showing clear traces of gnawing and consumption. The assemblage includes a nearly complete adult mandible, a second adult half mandible, a child mandible, several vertebrae, and isolated teeth.

High-resolution micro-CT imaging, geometric morphometrics, and comparative anatomical analysis reveal a mosaic of archaic and derived traits. Several characteristics recall hominins from Gran Dolina, Atapuerca, of comparable age – the so-called Homo antecessor – suggesting that very ancient population contacts between north-west Africa and southern Europe may once have existed. However, by the time of the Matuyama–Brunhes transition, these populations appear to have been already clearly separated, implying that any such exchanges must have occurred earlier.

Matthew Skinner notes: “Using microCT imaging, we were able to study a hidden internal structure of the teeth, referred to as the enamel-dentine junction, which is known to be taxonomically informative and which is preserved in teeth where the enamel surface is worn away. Analysis of this structure consistently shows the Grotte à Hominidés hominins to be distinct from both Homo erectus and Homo antecessor, identifying them as representative of populations that could be basal to Homo sapiens and archaic Eurasian lineages.”


Jean-Paul Raynal, co-director of the program and Abdellali Khadouma and Khalid Nader, workers who discovered the mandible ThI-GH-10717 in May 2008.
 Credit: R. Gallotti, Programme Préhistoire de Casablanca




Shara Bailey confirms the generalized shape and traits of the Grotte à Hominidés teeth, noting that “In their shapes and non-metric traits, the teeth from Grotte à Hominidés retain many primitive features and lack the traits that are characteristic of Neandertals. In this sense, they differ from Homo antecessor, which – in some features – are beginning to resemble Neandertals. The dental morphological analyses indicate that regional differences in human populations may have been already present by the end of the Early Pleistocene”.

A new window on the last common ancestor of humans and Neandertals

This discovery highlights that Northwest Africa played a major role in the early evolutionary history of the genus Homo, at a time when climatic oscillations periodically opened ecological corridors across what is now the Sahara.

As Denis Geraads notes: “The idea that the Sahara was a permanent biogeographic barrier does not hold for this period. The palaeontological evidence shows repeated connections between Northwest Africa and the savannas of the East and South.”

The hominins from the Grotte à Hominidés are almost contemporaneous with the hominins from Gran Dolina, older than Middle Pleistocene fossils ancestral to Neanderthals and Denisovans, and roughly 500,000 years earlier than the earliest Homo sapiens remains from Jebel Irhoud. In their combination of archaic African traits with traits that approach later Eurasian and African Middle Pleistocene morphologies, the hominins from the Grotte à Hominidés provide essential clues about the last common ancestor of Homo sapiens, Neandertals, and Denisovans—estimated from genetic evidence to have lived between 765,000 and 550,000 years ago. Paleontological evidence from the Grotte à Hominidés aligns most closely with the older part of this interval.

Jean-Jacques Hublin concludes that “the fossils from the Grotte à Hominidés may be the best candidates we currently have for African populations lying near the root of this shared ancestry, thus reinforcing the view of a deep African origin for our species.“


The birth of modern Man
https://chuckincardinal.blogspot.com/