The da Vinci bloodline is unlocking the genius’s genetic secrets

 For more than 500 years, Leonardo da Vinci has been admired as a brilliant artist, inventor, and thinker whose talents seemed far ahead of his time. Now, an ambitious international effort known as the Leonardo DNA Project is bringing scientists closer than ever to uncovering the biological roots of his genius.

A newly published book, "Genìa Da Vinci. Genealogy and Genetics for Leonardo's DNA," brings together three decades of research led by Alessandro Vezzosi and Agnese Sabato of the Leonardo Da Vinci Heritage Association in Vinci. Supported by the Municipality of Vinci, the work reconstructs an extensive family tree stretching back to 1331. It spans 21 generations and includes more than 400 individuals, creating the foundation for an unprecedented attempt to rebuild Leonardo's genetic profile.

By carefully studying archival records and historical documents, the researchers were able to map out previously unknown branches of Leonardo's family. In the process, they identified 15 living male descendants linked directly through the paternal line to Leonardo's father and his half-brother, Domenico Benedetto.

DNA Testing Links Living Descendants

This discovery opened the door for genetic analysis. David Caramelli, who coordinates the anthropological and molecular aspects of the Leonardo DNA Project and leads the Department of Biology at the University of Florence, worked with forensic anthropologist Elena Pilli to analyze DNA from six of these descendants.

The results showed that segments of the Y chromosome matched across the participants. Because this chromosome is passed from father to son with little change, the findings confirm a continuous male lineage within the Da Vinci family dating back at least 15 generations.

Ancient Tomb Could Hold Crucial Evidence

Researchers have also identified a Da Vinci family tomb at the Church of Santa Croce in Vinci. Archaeological excavations are currently underway in collaboration with the University of Florence. The site is believed to contain the remains of Leonardo's grandfather Antonio, his uncle Francesco, and several half-brothers, Antonio, Pandolfo, and Giovanni.

Anthropologists Alessandro Riga and Luca Bachechi have recovered bone fragments from the site, some of which have been radiocarbon dated. One specimen, consistent in age with Leonardo's relatives, has already undergone paleogenomic testing. Early analysis suggests the individual was male.

"Further detailed analyses are necessary to determine whether the DNA extracted is sufficiently preserved," says Caramelli, who is also President of the University Museum System. "Based on the results, we can proceed with analysis of Y chromosome fragments for comparison with current descendants."

If the Y chromosome from these remains matches that of living descendants, it would strengthen historical records and family lineage reconstructions. It could also make it possible to analyze biological traces connected to Leonardo himself, including material left on manuscripts or artworks, potentially enabling scientists to reconstruct his DNA.

A Global Scientific Effort

The Leonardo da Vinci DNA Project began in 2016 and is coordinated from The Rockefeller University in New York. It brings together institutions including the J. Craig Venter Institute in California and the University of Florence, with support from foundations such as the Achelis and Bodman Foundation (New York) and the Richard Lounsbery Foundation (Washington, D.C.).

The project focuses on tracking the Y chromosome, which passes largely unchanged through generations of males.

"Our goal in reconstructing the Da Vinci family's lineage up to the present day, while also preserving and valuing the places connected to Leonardo, is to enable scientific research on his DNA," says Vezzosi. "Through the recovery of Leonardo's DNA, we hope to understand the biological roots of his extraordinary visual acuity, creativity, and possibly even aspects of his health and causes of death."

"Even a tiny fingerprint on a page could contain cells to sequence," says Jesse H. Ausubel of The Rockefeller University and director of the project. "21st-century biology is moving the boundary between the unknowable and the unknown. Soon we may gain information about Leonardo and other historical figures once believed lost forever."

Beyond DNA: New Insights Into Leonardo's Life

The book goes far beyond genetics, offering a detailed exploration of Leonardo's world. Across 21 chapters, it examines historical, geographical, and genealogical evidence to better understand the environment in which he lived.

Researchers identified seven Da Vinci family homes in the village and castle of Vinci, along with two properties once owned by Leonardo himself. These properties were inherited from his uncle Francesco and were the subject of a long dispute with his half-brothers.

The study also revisits key figures in Leonardo's life. His grandfather Antonio is revealed as a traveling merchant who operated between Catalan Spain and Morocco, rather than simply a farmer. Meanwhile, new archival analysis provides a clearer view of Leonardo's mother, Caterina. Evidence suggests she may have been a slave working for a wealthy banker, Vanni di Niccolò di ser Vanni. Historical documents, including wills and donation records dating back to 1449, shed light on the relationship between this banker and Leonardo's father, ser Piero.

Source: ScienceDaily

Greenland ice melt has surged sixfold and scientists are alarmed

 Climate change is dramatically reshaping how Greenland's ice sheet melts, according to a new study led by the University of Barcelona and published in Nature Communications. Researchers found that extreme melting events are now happening more often, covering larger areas, and producing significantly more meltwater than in the past.Since 1990, the surface area affected by these extreme events has been expanding by about 2.8 million km2 per decade. At the same time, the amount of water released from melting ice has surged. Between 1950 and 2023, extreme melt events produced an average of 12.7 gigatons of water per decade. Since 1990, that figure has jumped to 82.4 gigatons per decade, marking a sixfold increase.

Record-Breaking Melt Events Are Becoming More Common

Most of the most intense melting episodes have occurred in recent decades. Seven of the ten most extreme events on record have taken place since 2000, including major events in August 2012, July 2019, and July 2021. These events stand out because they have no comparable dynamic precedents, highlighting how unusual current conditions have become.The study also shows that each extreme event is now producing more meltwater than similar events in the past. Since 1990, meltwater output during these episodes has risen by 25% compared to the 1950-1975 period when examining cases with similar anticyclonic and cyclonic air mass circulation. When considering all extreme events together, the increase reaches as high as 63%. This points to a strong thermodynamic effect, meaning rising temperatures are intensifying the melting beyond what atmospheric circulation alone would explain.

Northern Greenland Emerges as a Key Hotspot

The northern part of Greenland is now one of the regions most affected by these changes, emerging as a major hotspot for extreme melting. Looking ahead, projections under high greenhouse gas emission scenarios suggest that by the end of the century, the most intense meltwater anomalies could increase by as much as threefold.

New Methods Reveal Drivers Behind Intensifying Melt

The research was led by Josep Bonsoms, a postdoctoral researcher and professor in the Department of Geography at the University of Barcelona, with contributions from Marc Oliva, also a professor in the department. Conducted as part of the Antarctic, Arctic and Alpine Environments (ANTALP) Research Group, the study examined extreme melting events recorded between 1950 and 2023.

To better understand what is driving these changes, the team used a novel classification method that combines types of anticyclonic and cyclonic air mass circulation with a regional climate model. This approach allowed researchers to separate thermodynamic influences, which are linked to atmospheric warming, from dynamic influences tied to atmospheric circulation patterns.

Global Implications and Growing Strategic Importance

As global attention increasingly focuses on Greenland due to rapid environmental changes and their geopolitical implications, these findings carry added weight. Bonsoms, the article's lead author, says that "the rapid transformation of the ice sheet not only has global environmental consequences, such as sea level rise and possible alterations in ocean circulation, but also places the Arctic at the centre of new strategic, economic and territorial dynamics."

Understanding the processes that intensify extreme melting is critical for anticipating future risks and shaping informed policy decisions. The study is part of the GRELARCTIC project led by the UB ANTALP research group, with Marc Oliva as principal investigator, and was supported by an award from the ICREA Academia program.

Source: ScienceDaily

This simple amino acid supplement greatly reduces Alzheimer’s damage

 Alzheimer's disease (AD) is a progressive brain disorder and a leading cause of dementia worldwide. Despite years of research, there is still no cure. New antibody-based treatments that target amyloid β (Aβ) have recently emerged, but their benefits have been modest. These therapies can also be expensive and may trigger immune-related side effects, underscoring the urgent need for safer, more affordable options that can slow the disease.

A recent study published in Neurochemistry International offers a surprising possibility. Researchers from Kindai University and partner institutions found that arginine, a naturally occurring amino acid, can reduce the buildup of harmful Aβ proteins in animal models of Alzheimer's. Arginine also acts as a safe chemical chaperone, helping proteins maintain their proper structure.

The team noted that while arginine is widely available as an over-the-counter supplement, the doses and methods used in this study were specifically designed for research and are not the same as commercial products.

The research group included Graduate Student Kanako Fujii and Professor Yoshitaka Nagai from the Department of Neurology at Kindai University Faculty of Medicine in Osaka, along with Associate Professor Toshihide Takeuchi from the Life Science Research Institute at Kindai University.

Lab and Animal Studies Show Strong Effects

In laboratory experiments, the scientists first showed that arginine can block the formation of Aβ42 aggregates, which are considered especially toxic. The effect increased with higher concentrations.

They then tested oral arginine in two well-established Alzheimer's models:

• A Drosophila model, expressing Aβ42 with the Arctic mutation (E22G)
• An AppNL-G-F knock-in mouse model, carrying three familial AD mutations

In both cases, arginine treatment reduced the accumulation of Aβ and lessened its harmful effects.

"Our study demonstrates that arginine can suppress Aβ aggregation both in vitro and in vivo," explains Prof. Nagai. "What makes this finding exciting is that arginine is already known to be clinically safe and inexpensive, making it a highly promising candidate for repositioning as a therapeutic option for AD."

Improved Brain Health and Reduced Inflammation

In the mouse model, the benefits went beyond reducing protein buildup. Arginine lowered amyloid plaque levels and reduced the amount of insoluble Aβ42 in the brain. Treated mice also performed better in behavioral tests.

The researchers found that arginine reduced the activity of genes linked to pro-inflammatory cytokines, which are associated with neuroinflammation, a major feature of Alzheimer's disease. This suggests that arginine may not only prevent harmful protein aggregation but also protect brain cells more broadly.

"Our findings open up new possibilities for developing arginine-based strategies for neurodegenerative diseases caused by protein misfolding and aggregation," notes Prof. Nagai. "Given its excellent safety profile and low cost, arginine could be rapidly translated to clinical trials for Alzheimer's and potentially other related disorders."

A Low-Cost Path Toward New Alzheimer's Treatments

The study highlights the growing interest in drug repositioning, which involves finding new uses for existing, well-established compounds. Because arginine is already used clinically in Japan and has been shown to safely reach the brain, it could bypass some of the early hurdles that slow down traditional drug development.

Still, the researchers caution that more work is needed. Additional preclinical and clinical studies will be required to determine whether these results can be reproduced in humans and to establish the most effective dosing strategies.

Even so, the findings provide strong early evidence that simple nutritional or pharmacological approaches may help reduce amyloid buildup and improve brain function.

Expanding Understanding of Alzheimer's Biology

Beyond its potential as a treatment, this work sheds new light on how Aβ proteins form and accumulate in the brain. It also points to a practical and cost-effective strategy that could eventually benefit millions of people living with Alzheimer's worldwide.

Professor Yoshitaka Nagai, a neurologist and Chair of the Department of Neurology at Kindai University Faculty of Medicine in Osaka, focuses his research on neurodegenerative diseases including Alzheimer's, Parkinson's, and amyotrophic lateral sclerosis. His work centers on protein misfolding and RNA-related mechanisms, and he has received multiple honors from organizations such as the Japanese Society of Neurochemistry and the Japanese Dementia Society.

This research was supported by the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) (Grant No. 20H05927), Japan Society for the Promotion of Science (JSPS) (Grant Nos. 24H00630, 21H02840, 22H02792, and 25K02432), Japan Science and Technology Agency (JST) Super-Highway Program (SHW2023-03), and National Center of Neurology and Psychiatry.

Source: ScienceDaily

Scientists say travel could slow aging and boost your health

 Retinol creams may get most of the attention in the fight against visible aging, but researchers at Edith Cowan University (ECU) have pointed to a much bigger and more adventurous possibility: travel.

In a 2024 interdisciplinary study published in the Journal of Travel Research, ECU researchers applied the theory of entropy to tourism, proposing that positive travel experiences may support physical and mental health in ways that could help slow some signs of aging. The work does not suggest that travel can stop aging, but it frames tourism as more than a break from routine. It may be a way to help the body maintain balance, resilience, and repair.

How Travel Could Influence Aging

Entropy is often described as the universe's movement toward disorder. In the context of health, the researchers suggest that experiences can either support or disrupt the body's ability to stay organized and functioning well. Positive travel experiences may help reduce that drift toward disorder, while stressful or unsafe travel may push the body in the opposite direction.

"Aging, as a process, is irreversible. While it can't be stopped, it can be slowed down," ECU PhD candidate Ms. Fangli Hu said.

According to Ms. Hu, travel may improve well being by placing people in new environments, encouraging movement, increasing social interaction, and creating positive emotions. Those same ideas already appear in areas such as wellness tourism, health tourism, and yoga tourism.

"Tourism isn't just about leisure and recreation. It could also contribute to people's physical and mental health," Ms. Hu added.

Travel Therapy and the Body's Defense Systems

Viewed through an entropy lens, travel therapy could become a meaningful health intervention, Ms. Hu said. The idea is that positive travel experiences, as part of a person's environment, may help the body maintain a healthier low entropy state by influencing four major body systems.

Travel often combines unfamiliar surroundings with relaxing experiences. New settings can stimulate the body, raise metabolic activity, and help activate self organizing processes that keep biological systems working smoothly. These experiences may also prompt the adaptive immune system, which helps the body recognize and respond to outside threats.

Ms. Hu said that this reaction improves the body's ability to perceive and defend itself against external threats.

"Put simply, the self-defense system becomes more resilient. Hormones conducive to tissue repair and regeneration may be released and promote the self-healing system's functioning."

Stress Relief, Movement, and Healthy Aging

Relaxing travel activities may also help reduce chronic stress and calm an overactive immune response. Recreation can ease tension and fatigue in the muscles and joints, supporting metabolic balance and strengthening the body's ability to resist wear and tear.

This matters because travel is rarely just sitting still. Trips often include walking through cities, hiking trails, climbing, cycling, or simply spending more time on your feet than usual. That physical activity can increase metabolism, energy use, and nutrient movement throughout the body, all of which may support the systems that keep the body repaired and resilient.

"Participating in these activities could enhance the body's immune function and self-defense capabilities, bolstering its hardiness to external risks. Physical exercise may also improve blood circulation, expedite nutrient transport, and aid waste elimination to collectively maintain an active self-healing system. Moderate exercise is beneficial to the bones, muscles, and joints in addition to supporting the body's anti-wear-and-tear system," Ms. Hu said.

A Field That Is Still Taking Shape

Since the 2024 study, related work has continued to explore travel therapy as a possible health and wellness approach. A 2025 research note by Hu and colleagues described travel therapy as an emerging approach in which positive travel experiences may promote well being, while also emphasizing the need to weigh benefits against risks.

Another 2025 paper called for closer collaboration between travel medicine and tourism, reflecting a growing interest in how vacations, health risks, preventive care, and traveler well being overlap. A 2025 systematic review also found that tourism and healthy aging is becoming an important interdisciplinary research area, but remains underexplored and in need of stronger methods and clearer future research directions.

Source: ScienceDaily

Scientists just created exotic new forms of matter that shouldn’t exist

 Quantum technology is widely expected to transform how large and complex data sets are processed. Although it is currently used mostly in laboratories and research environments, the field is steadily moving toward real-world applications across a range of industries.

In a recent study exploring the fundamentals of quantum physics, researchers examined how matter behaves at extremely small scales, including atoms, electrons, and photons. The work, led by Cal Poly Physics Department Lecturer Ian Powell, focused on how varying a magnetic field over time can cause matter to exhibit unusual and previously unseen properties.

Powell and student researcher Louis Buchalter, who earned a Cal Poly bachelor's degree in physics in 2025, published their findings in Physical Review B in a paper titled "Flux-Switching Floquet Engineering." Their research shows that when magnetic fields are changed in a controlled, time-dependent way, they can generate quantum states that do not exist in materials that remain unchanged over time (remaining in the same state as time elapses).

"On a big-picture level, I would describe this as an advance in our understanding of how time-dependent control can create and organize new forms of quantum matter," Powell said. "The central idea is that useful quantum properties can depend not just on what a material is, but on how it is driven in time. In our case, we show that periodically changing a magnetic field can produce driven quantum phases with no static counterpart."

Toward More Stable Quantum Technologies

By carefully timing how magnetic fields are applied, scientists can design quantum systems with properties that are more stable and less vulnerable to "noise" or imperfections. These disruptions are a major challenge in quantum technology, often leading to errors in calculations or system performance.

Powell noted that while the technical details can be difficult to explain outside the field, the broader concept is clear. The findings suggest new ways to create and study these unusual quantum states in controlled settings such as ultracold-atom experiments.

"The most direct industry relevance of our study is to quantum computing and quantum simulation, rather than to a specific end-use sector at this stage," Powell said. "Any eventual impact on areas like pharmaceuticals, finance, manufacturing or aerospace would likely be indirect, by contributing to the longer-term development of better quantum technologies. To move toward industry use, the next steps would be experimental validation and further work connecting these ideas to realistic quantum-device platforms."

New Mathematical Patterns in Quantum Systems

Beyond creating new quantum states, the research also identified a mathematical organizing principle that mirrors patterns typically found in higher-dimensional quantum systems. This suggests that relatively simple systems driven by changing conditions could provide new ways to explore more complex quantum physics.

The team also mapped out how these exotic states form, revealing a precise structure in the system's topological phase diagram. This diagram serves as a visual guide to different stable quantum phases, each defined by fixed topological properties.

Why Quantum Control Matters for Computing

Quantum mechanics allows computing systems to process information in ways that far exceed the capabilities of classical computers. These systems can perform large-scale simulations, analyze vast data sets, and solve complex problems more efficiently.

Magnetic fields play a central role in this process. They are commonly used to control and measure quantum bits (or qubits), the fundamental units of quantum information. Qubits are comparable to the units of 0s and 1s in classicalcomputing (applied in commonplace computing currently) used to represent physical electrical states.

Student Research Experience and Future Work

For Buchalter, participating in the study provided valuable insight into the research process and scientific communication.

"A lot about the process of conducting research and how new research findings are effectively communicated with the broader scientific community."

"I learned that research is rarely a straightforward process, often requiring persistence and creative problem solving during the course of a research project," Buchalter said. "I believe our results help demonstrate the power of Floquet engineering for realizing quantum systems with highly-tunable properties, paving the way for further research into periodically driven quantum matter and the development of its applications."

Source: ScienceDaily

DNA research just rewrote the origin of human species

 A sweeping genetic analysis is challenging one of the simplest versions of the human origin story: the idea that all modern humans arose from a single ancestral population in Africa. Instead, the research points to a more intricate beginning, with early human groups spread across Africa, mixing for long stretches of time before some of their differences became visible in the DNA of people living today.

The study, published in Nature in 2023, compared genetic material from present day African populations with fossil evidence from early Homo sapiens populations. The result was a model of human evolution that replaces a clean family tree with something more like a network of deeply connected branches.

A More Complex Beginning in Africa

Scientists broadly agree that Homo sapiens originated in Africa. The harder question is how early human groups separated, moved, reconnected, and shaped one another across the continent.

Brenna Henn, professor of anthropology and the Genome Center at UC Davis and corresponding author of the study, said the uncertainty comes from gaps in both fossils and ancient DNA.

"This uncertainty is due to limited fossil and ancient genomic data, and to the fact that the fossil record does not always align with expectations from models built using modern DNA," she said. "This new research changes the origin of species."

The work was co led by Henn and Simon Gravel of McGill University. Their team tested several competing ideas about human evolution and migration in Africa, drawing from models proposed in paleoanthropology and genetics. The analysis included genome data from southern, eastern and western Africa.

The Nama Genomes Added a Key Clue

A major part of the study came from 44 newly sequenced genomes from modern Nama individuals in southern Africa. The Nama are an Indigenous population known for carrying unusually high levels of genetic diversity compared with many other living groups.

Researchers collected saliva samples from people in their villages between 2012 and 2015, while participants were going about daily life. Those samples helped the team examine whether human origins fit a single source model or something broader and more interconnected.

The best fitting model suggested that the earliest population split among early humans still detectable in living people happened roughly 120,000 to 135,000 years ago. Before that split, two or more weakly differentiated Homo populations had been exchanging genes for hundreds of thousands of years.

Even after the split, movement and mating continued between these early groups. The researchers describe this as a weakly structured stem, meaning the roots of modern humans were not one isolated population, but a loose set of connected populations with ongoing gene flow.

Not One Branch, But a Network

That network like model may explain human genetic diversity better than older models, according to the authors. Instead of needing to assume major contributions from an unknown archaic hominin population in Africa, the model shows how patterns in modern DNA could have emerged from structure within ancestral human populations themselves.

"We are presenting something that people had never even tested before," Henn said of the research. "This moves anthropological science significantly forward."

Co-author Tim Weaver, a UC Davis professor of anthropology who studies early human fossils, said the results shift how scientists should think about older explanations.

"Previous more complicated models proposed contributions from archaic hominins, but this model indicates otherwise," he said.

Weaver contributed comparative fossil expertise to the study, helping connect genetic models with what early human remains looked like.

What This Means for Ancient Fossils

The model also has consequences for how scientists interpret the fossil record. According to the authors, only 1 to 4% of genetic differentiation among living human populations can be traced to variation between these ancestral stem populations.

Because the early branches continued mixing, they were probably similar in appearance. That means fossils with very different physical traits (such as Homo naledi) are unlikely to represent lineages that directly contributed to the evolution of Homo sapiens, the authors said.

In other words, the roots of humanity may have been geographically and genetically widespread, but not necessarily divided into sharply different human forms. The deeper picture is one of movement, contact, and repeated mixing across Africa.

Later Research Adds More Depth

Work published after the 2023 study has continued to show how important African genomic diversity is for understanding human origins. A 2024 Nature Ecology & Evolution study reported 9,000 years of genetic continuity in southernmost Africa, highlighting the region's long and unusually deep human population history.

A later Nature study analyzed genomes from 28 ancient southern African individuals dated between 10,200 and 150 years before present. That work found that ancient southern Africans carried genetic variation outside the range seen in living people and identified Homo sapiens specific variants that may shed light on adaptation and evolution within Africa.

Together, these findings strengthen a bigger message: human origins were not a single spark in one place. They were shaped by many populations, deep African diversity, and long periods of connection across the continent.

Additional co-authors of the 2023 study include Aaron Ragsdale, University of Wisconsin, Madison; Elizabeth Atkinson, Baylor College of Medicine; and Eileen Hoal and Marlo Möller, Stellenbosch University, South Africa.

Source: ScienceDaily

Blood vessels found in T. rex bones are rewriting dinosaur science

 Despite decades of effort, scientists have never recovered dinosaur DNA. Most paleontology research today still focuses on searching for traces of original organic material in fossils, but DNA has not survived the passage of time.

Much of what we understand about dinosaurs comes from fossilized bones and teeth. These durable remains preserve well, but they offer only limited insight into how these animals actually lived.

Soft tissues, on the other hand, can reveal far more. These rare fossilized materials include muscles and ligaments, pigments or even skin (like scales or feathers). They provide important clues about appearance, movement, and behavior.

Another type of soft tissue sometimes preserved inside bones is blood vessels. My research team and I identified preserved blood vessels in a Tyrannosaurus rex fossil, and our findings were recently published in Scientific Reports.

A Discovery That Began With Physics

As an undergraduate physics student at the University of Regina, I joined a research group that used particle accelerators to study fossils. During that time, I used advanced 3D imaging techniques to examine a T. rex bone and noticed structures that appeared to be blood vessels.

Nearly six years later, I am now pursuing a PhD, continuing to apply physics-based methods to improve how fossils are analyzed.

The Largest T. Rex Ever Found

The preserved vessels came from an extraordinary specimen known as Scotty. Housed at the Royal Saskatchewan Museum in Canada, Scotty is the largest T. rex ever discovered and one of the most complete.

Evidence suggests Scotty lived a difficult life around 66 million years ago. Many of its bones show signs of injury, possibly from combat with another dinosaur or from disease. One rib stands out, showing a large fracture that had only partially healed.

When bones are damaged, the body increases blood vessel activity in the affected area to support healing. The structures we observed in Scotty's rib appear to be part of that process, forming a dense network of mineralized vessels that we reconstructed using 3D models.

Advanced Imaging Reveals Hidden Structures

Studying the inside of fossil bones presents two major challenges. First, researchers need to look inside without damaging the specimen. Second, fossilized bones are extremely dense because minerals have replaced the original organic material over millions of years.

We initially considered using an computed topography (CT) scan, similar to those used in medicine. While this method is non-destructive, standard CT scanners cannot penetrate the dense structure of large fossils.

Instead, we turned to synchrotron light, a powerful form of high-intensity x-rays produced at specialized particle accelerator facilities. This technique allowed us to visualize tiny internal features such as blood vessels with remarkable clarity.

Synchrotron imaging also made it possible to analyze the chemical composition of the structures. The vessels had been preserved as iron-rich mineralized casts, which is a common fossilization process. Interestingly, they appeared in two distinct layers, reflecting a complex environmental history that contributed to their preservation.

What Blood Vessels Reveal About Dinosaur Life

The partially healed fracture in Scotty's rib offers a rare opportunity to study how a T. rex recovered from injury. By examining the preserved blood vessels, researchers can gain insight into healing processes and survival strategies in large predatory dinosaurs.

This work may also provide a basis for comparison with other dinosaur species and with modern animals such as birds, which are closely related to dinosaurs.

The findings could guide future fossil discoveries as well. Bones that show signs of injury or disease may be more likely to preserve blood vessels or other soft tissues, helping scientists target promising specimens.

With the combination of physics, paleontology, and advanced imaging technologies, researchers are beginning to uncover details about dinosaur biology that were once thought impossible to study.

Source: ScienceDaily