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Rewriting the Story of Human Migration: Scientists Uncover Lost Land Bridge to Europe

An “emotional and inspiring” archaeological find of Paleolithic tools has revealed a long-lost prehistoric passage that may have enabled movement between Ayvalık and Europe. Continuous stretches of land, now lying beneath the sea, may once have allowed early humans to move between what is now Türkiye and Europe, according to groundbreaking research in a region [...]

A Paleolithic handaxe with a broken distal end, discovered during the Ayvalık survey. Credit: Kadriye, Göknur, and HandeAn “emotional and inspiring” archaeological find of Paleolithic tools has revealed a long-lost prehistoric passage that may have enabled movement between Ayvalık and Europe. Continuous stretches of land, now lying beneath the sea, may once have allowed early humans to move between what is now Türkiye and Europe, according to groundbreaking research in a region that has remained largely unexamined. The findings, published on 19 September 2025 in the peer-reviewed Journal of Island and Coastal Archaeology, document the first evidence of a Paleolithic presence in Ayvalık. More significantly, they may reshape our understanding of how humans entered Europe. For decades, the prevailing view has been that Homo sapiens reached the continent mainly through the Balkans and the Levant, traveling from Africa into the Middle East. Yet, the recent discovery of 138 stone tools across 10 sites spanning 200 km² suggests a different possibility: long before Ayvalık became known for its olive groves and coastal landscapes, its northeastern Aegean shoreline may have provided an alternative pathway for humans adapting to a shifting prehistoric world. “Our archaeological discovery has unveiled that this now-idyllic region once potentially offered a vital land bridge for human movement during the Pleistocene era—when sea levels dropped and the now-submerged landscape was briefly exposed,” explains Dr Göknur Karahan, from the Department of Archaeology-Prehistory, at Hacettepe University, in Turkey, who was part of a fully female team of expert archaeologists from the country. General view of the Ayvalık region, where the Paleolithic survey was conducted. Credit: Kadriye, Göknur, and Hande“We are very excited and delighted with this discovery. These findings mark Ayvalık as a potential new frontier in the story of human evolution, placing it firmly on the map of human prehistory – opening up a new possibility for how early humans may have entered Europe.   “It feels like we are adding an entirely new page to the story of human dispersal. Our research raises exciting possibilities for future exploration, and we hope it emerges as a body of work that will shift the approach of Pleistocene archaeology for decades to come.”  How were these findings possible?  During the Ice Age, sea levels were more than 100 meters lower than today, revealing broad stretches of land that are now submerged. In that period, the islands and peninsulas of modern Ayvalık were connected as part of a single landmass, creating a natural corridor between Anatolia and Europe. The newly uncovered tools lie along the present coastline, offering direct evidence of people inhabiting and traveling across these landscapes that later disappeared beneath the sea. During the field survey in Ayvalık. from left to right, Göknur, Kadriye, and Hande. Credit: Göknur, Kadriye, and HandeUntil now, factors such as environmental changes and the depth at which remains are buried have made it difficult to identify and preserve archaeological evidence in the Ayvalık region. “In all these periods, the present-day islands and peninsulas of Ayvalık would have formed interior zones within an expansive terrestrial environment,” explains co-author Professor Kadriye Özçelik, from Ankara University.  “These paleogeographic reconstructions underscore the importance of the region for understanding hominin dispersals across the northeastern Aegean during the Pleistocene.”  What was found?   The region’s shifting geology and active coastlines in the North Aegean made preservation difficult and the number of items uncovered “limited.” However, this research team managed to uncover Levallois technologies from various Paleolithic periods, as well as handaxes and cleavers.     Among the most significant finds include Levallois-style flake tools, sophisticated implements linked to the Middle Paleolithic Mousterian tradition – these are often associated with Neanderthals and early Homosapiens.    “These large cutting tools are among the most iconic artifacts of the Paleolithic and are instantly recognizable even today, so are a very important find,” explains Dr Karahan.    “The presence of these objects in Ayvalık is particularly significant, as they provide direct evidence that the region was part of wider technological traditions shared across Africa, Asia, and Europe.” Field survey in Ayvalık from left to right, Kadriye, Göknur, and Hande. Credit: Kadriye, Göknur, and Hande Describing the initial discovery of the 131 items, Dr Karahan adds: “It was a truly unforgettable moment for us. Holding the first tools in our hands was both emotional and inspiring.  “And each find from there on was a moment of excitement for the whole team.   “Holding these objects —after walking across landscapes where no one had ever documented Paleolithic remains before— was unforgettable.”  What does this discovery tell us about early humans? The experts’ key argument hinges on the potential of Ayvalık as a dynamic site for interaction and exchange, facilitating early human movement between the Anatolia peninsula and Europe.   Exploring how Anatolia, with a specific focus on Ayvalık, and Europe were linked during glacial sea-level low stands offers alternative pathways for how early humans moved around the region beyond dominantly emphasised northern mainland-centered routes.  Addressing a gap in the scholarship, the authors’ work provides a new foundation for examining resources and migration routes in which Ayvalık may have featured as part of a mobility corridor.  The survey’s yield of tools demonstrates a “consistent use of Levallois technology and flake production… and a diversified toolkit,” whilst all artefacts together offer what the team state are “valuable insights into early human presence, raw material preferences, and technological variability.” “The findings paint a vivid picture of early human adaptation, innovation, and mobility along the Aegean,” Dr Karahan explains.  “The results confirmed that Ayvalık – which had never before been studied for its Paleolithic potential – holds vital traces of early human activity.”  Incredible recoveries, hundreds of thousands of years later  As this was a survey (carried out across a two-week period in June 2022) rather than an excavation, the team could not be certain of what they would find when they set off. They knew from the region’s geology and paleogeography that there was potential. They explored – often muddy, (particularly in lowland basins and coastal plains) – sites by foot.  What followed was a “discovery of such a diverse and well-preserved set of artifacts, which exceeded our expectations,” Dr Karahan says.   Although these recovery efforts were not without challenges, the authors explore what both the challenges and findings reveal in the paper.   They state: “The widespread, muddy cover was considered a limiting factor for the preservation and detectability of Paleolithic materials.   “However, despite these constraints, high-quality raw material sources, such as flint and chalcedony, were identified in multiple locations, including areas affected by alluvial deposition.” Future potential   Fellow author Dr Hande Bulut, from Düzce University, adds: “Ultimately, the results underline Ayvalık’s potential as a long-term hominin habitat and a key area for understanding Paleolithic technological features in the eastern Aegean.  “While preliminary, the current findings underscore the region’s potential to contribute to broader debates on Aegean connectivity and technological evolution during the Pleistocene.  “Excitingly, the region between the North Aegean and the Anatolian mainland, may still hold valuable clues to early occupation despite the challenges posed by active geomorphological processes.”  The team recommends future research uses a multidisciplinary approach to outline absolute dating, stratigraphic excavation, and paleoenvironmental reconstruction, which they describe as “essential to clarify the temporal depth and functional character of the Ayvalık assemblage.” Reference: “Discovering the Paleolithic Ayvalık: A Strategic Crossroads in Early Human Dispersals Between Anatolia and Europe” by Hande Bulut, Göknur Karahan and Kadriye Özçelik, 17 September 2025, Journal of Island and Coastal Archaeology.DOI: 10.1080/15564894.2025.2542777 Never miss a breakthrough: Join the SciTechDaily newsletter.Follow us on Google, Discover, and News.

Environmentalists, Politicians, Celebrities Recall Life and Influence of Primatologist Jane Goodall

Tributes poured in from around the world honoring the life and influence of Jane Goodall, the famed primatologist whose death at the age of 91 was announced on Wednesday

Jane Goodall was a pioneer, a tireless advocate and a deeply compassionate conservationist who inspired others to care about primates — and all animals — during a long life well lived, according to tributes from around the world.U.S. Sen Cory Booker of New Jersey posted a video of Goodall to social media, and thanked her for her “lasting legacy of conservation.” Journalist Maria Shriver said Goodall was a “legendary figure and a friend” who “changed the world and the lives of everyone she impacted."Here’s a roundup of some notable reaction to Goodall's death and legacy: U.N. Secretary-General António Guterres “I’m deeply saddened to learn about the passing of Jane Goodall, our dear Messenger of Peace. She is leaving an extraordinary legacy for humanity & our planet.” — on X. UNESCO Director-General Audrey Azoulay “Dr. Jane Goodall was able to convey the lessons of her research to everyone, especially young people. She changed the way we see Great Apes. Her chimpanzee greetings at UNESCO last year — she who so strongly supported our work for the biosphere — will echo for years to come.” — written statement.“Jane Goodall’s brilliant mind, compassionate heart, and pioneering spirit helped us better understand our connection to nature and our responsibility to defend it — and she inspired generations to do their part. It was an honor to have her alongside us just last week to share with leaders a message that is more urgent than ever.” — on X.“Thank you Jane Goodall for a lasting legacy of conservation, service to all of us, and for always being brave.” — on X. Former Canadian Prime Minister Justin Trudeau “Heartbroken to hear of Dr. Jane Goodall’s passing. She was a pioneer whose research and advocacy reshaped our understanding of the natural world. Her wisdom and compassion will live on in every act of conservation. All of us who were so greatly inspired by her will miss her deeply.” — on X.“Jane Goodall was a legendary figure and a friend. I admired her, learned from her, and was so honored to get to spend time with her over the years. She stayed at her mission and on her mission. She changed the world and the lives of everyone she impacted. The world lost one of its best today, and I lost someone I adored.” — on X. PETA Founder Ingrid Newkirk “Jane Goodall was a gifted scientist and trailblazer who forever changed the way we view our fellow animals. Caring about all animals, she went vegan after reading Animal Liberation, and helped PETA with many campaigns, calling her 1986 visit to a Maryland laboratory full of chimpanzees in barren isolation chambers ‘the worst experience of my life.’ We could always count on her to be on the animals’ side, whether she was urging UPS to stop shipping hunting trophies, calling for SeaWorld’s closure, or a shutdown of the Oregon National Primate Research Center.” — in written statement. Kitty Block, president and CEO of Humane World for Animals “Goodall’s influence on the animal protection community is immeasurable, and her work on behalf of primates and all animals will never be forgotten.” — in written statement.“My friend Jane Goodall was the wisest and most compassionate person I’ve ever met. She could make anybody feel hopeful about the future … no matter the hardships of the present. Just this weekend, she wrote to let me know she was thinking about what she could do to alleviate all of the suffering in Gaza, in Ukraine, in Sudan, and beyond. She was my hero, my inspiration. I will miss her every single day.” — on X.“Jane Goodall was a groundbreaking scientist and leader who taught us all so much about the beauty and wonder of our world. She never stopped advocating for nature, people, and the planet we share. May she rest in peace.” — on X.The Associated Press’ climate and environmental coverage receives financial support from multiple private foundations. AP is solely responsible for all content. Find AP’s standards for working with philanthropies, a list of supporters and funded coverage areas at AP.org.Copyright 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Photos You Should See – Sept. 2025

Jane Goodall dies at 91 after transforming chimpanzee science and conservation

British primatologist Jane Goodall, who transformed the study of chimpanzees and became one of the world’s most revered wildlife advocates, has died at the age of 91, her institute announced Wednesday. Goodall “passed away due to natural causes” while in California on a speaking tour of the United States, the Jane Goodall Institute said in […] The post Jane Goodall dies at 91 after transforming chimpanzee science and conservation appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

British primatologist Jane Goodall, who transformed the study of chimpanzees and became one of the world’s most revered wildlife advocates, has died at the age of 91, her institute announced Wednesday. Goodall “passed away due to natural causes” while in California on a speaking tour of the United States, the Jane Goodall Institute said in a statement on Instagram. In a final video posted before her death, Goodall, dressed in her trademark green, told an audience: “Some of us could say ‘Bonjour,’ some of us could say ‘Guten Morgen,’ and so on, but I can say, ‘Hoo-hoo-hoo-hoo-hoo-hoo-hoo! That’s ‘good morning’ in chimpanzee.'” Tributes poured in from across the conservation world.  “Dr. Jane Goodall was able to share the fruits of her research with everyone, especially the youngest, and to change our view of great apes,” said Audrey Azoulay, director general of UNESCO, adding Goodall had supported the agency’s conservation work. “My heart breaks at the news that the brave, heartful, history-making Jane Goodall has passed,” actress Jane Fonda said on Instagram. “I loved her very much.” “I think the best way we can honor her life is to treat the earth and all its beings like our family, with love and respect,” added Fonda, herself a prominent environmental activist.  Groundbreaking discoveries Born in London on April 3, 1934, Goodall grew fascinated with animals in her early childhood, when her father gave her a stuffed toy chimpanzee that she kept for life. She was also captivated by the Tarzan books, about a boy raised by apes who falls in love with a woman named Jane. In 1957 at the invitation of a friend she traveled to Kenya, where she began working for the renowned paleontologist Louis Leakey. Goodall’s breakthrough came when Leakey dispatched her to study chimpanzees in Tanzania. She became the first of three women he chose to study great apes in the wild, alongside American Dian Fossey (gorillas) and Canadian Birute Galdikas (orangutans). Goodall’s most famous finding was that chimpanzees use grass stalks and twigs as tools to fish termites from their mounds. On the strength of her research, Leakey urged Goodall to pursue a doctorate at Cambridge University, where she became only the eighth person ever to earn a PhD without first obtaining an undergraduate degree. She also documented chimpanzees’ capacity for violence — from infanticide to long-running territorial wars — challenging the notion that our closest cousins were inherently gentler than humans. Instead, she showed they too had a darker side. In 1977 she founded the Jane Goodall Institute to further research and conservation of chimpanzees. In 1991 she launched Roots & Shoots, a youth-led environmental program that today operates in more than 60 countries. Her activism was sparked in the 1980s after attending a US conference on chimpanzees, where she learned of the threats they faced: exploitation in medical research, hunting for bushmeat, and widespread habitat destruction. From then on, she became a relentless advocate for wildlife, traveling the globe into her nineties. Goodall married twice: first to Dutch nobleman and wildlife photographer Baron Hugo van Lawick, with whom she had her only child, Hugo Eric Louis van Lawick, who survives her.  That marriage ended in divorce and was followed by a second, to Tanzanian lawmaker Derek Bryceson, who later died of cancer. Message of hope Goodall wrote dozens of books, including for children. She appeared in documentaries, and earned numerous honors, among them being made a Dame Commander by Britain and receiving the US Presidential Medal of Freedom from then-president Joe Biden. She was also immortalized as both a Lego figure and a Barbie doll, and was famously referenced in a Gary Larson cartoon depicting two chimps grooming. “Conducting a little more ‘research’ with that Jane Goodall tramp?” one chimp asks the other, after finding a blonde hair. Her institute threatened legal action, but Goodall herself waved it off, saying she found it amusing. “The time for words and false promises is past if we want to save the planet,” she told AFP in an interview last year ahead of a UN nature summit in Colombia. Her message was also one of personal responsibility and empowerment. “Each individual has a role to play, and every one of us makes some impact on the planet every single day, and we can choose what sort of impact we make.” The post Jane Goodall dies at 91 after transforming chimpanzee science and conservation appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

Why Is This Remote and Rugged River in Alaska Turning Orange?

New research suggests the Salmon River is full of toxic metals that are likely harming fish and other aquatic creatures

Why Is This Remote and Rugged River in Alaska Turning Orange? New research suggests the Salmon River is full of toxic metals that are likely harming fish and other aquatic creatures Sarah Kuta - Daily Correspondent October 1, 2025 4:56 p.m. New research suggests that the Salmon River in northwest Alaska is full of toxic metals. Ray Koleser Alaska’s Salmon River was once so clean that author John McPhee described it as the “clearest, purest water I have ever seen flowing over rocks.” Now, however, the remote waterway is a muddy, orangish-yellow mess. It’s brimming with toxic metals, at concentrations that are likely harmful to aquatic life. The culprit? Thawing permafrost resulting from climate change, according to a study published in the journal Proceedings of the National Academy of Sciences last month. “It’s a sobering study,” says Diane McKnight, a geochemist at the University of Colorado Boulder who was not involved with the research, to Chemical & Engineering News’ Fionna Samuels. The Salmon River winds 70 miles through Kobuk Valley National Park in northwest Alaska, flowing from Mount Angayukaqsraq to the Kobuk River. The federal government designated it a National Wild and Scenic River in 1980, noting its large salmon runs and its “water of exceptional clarity.” However, around 2019, the once-crystal-clear waters of the Salmon River and its tributaries turned orange and murky. Patrick Sullivan, an ecologist at the University of Alaska Anchorage, and Roman Dial, a now-retired biologist at Alaska Pacific University, first noticed the unusual hue during an unrelated research trip in the region. Fun Fact Alaska archaeology Alaska is home to the oldest known evidence of salmon fishing in the Americas—11,500-year-old fish bones. The Salmon River had become what’s known as a “rusting river,” a phenomenon caused by the presence of high amounts of iron and other metals. Sullivan, Dial and their colleagues returned to the waterway to take samples in 2022 and 2023. Based on their analyses, they suspect it has fallen victim to sulfide mineral weathering, also known as acid-rock drainage, which can occur when permafrost thaws. Found primarily in the Arctic and some high-elevation regions, permafrost is the name given to soil, sand, sediment and rock that remains at or below freezing temperatures for at least two years. The bedrock beneath some permafrost contains sulfide minerals, which are typically inaccessible to groundwater. However, when permafrost thaws, those minerals become exposed to water and oxygen for the first time in hundreds or even thousands of years. As the minerals dissolve, they produce acids, which in turn cause metals to leach out of rocks. In this way, acid-rock drainage is a form of natural pollution that can occur far from humans—even though it’s caused by human activity. “There are few places left on Earth as untouched as these rivers,” says co-author Tim Lyons, a geochemist at the University of California Riverside, to BBC Wildlife Magazine’s Daniel Graham. “But even here, far from cities and highways, the fingerprint of global warming is unmistakable. No place is spared.” The team’s analyses show the Salmon River is chock-full of metals—including aluminum, cadmium, copper, iron, nickel, and zinc—at concentrations above the U.S. Environmental Protection Agency’s safe limits for aquatic life. “If there were a mine that were operating in the headwaters of the Salmon, they would be facing regulatory intervention at this point,” Sullivan tells Chemical & Engineering News. Pollution from mines is typically limited to a single source and can be managed with treatment systems. Acid-rock drainage caused by permafrost thaw, on the other hand, is occurring at various sites and is nearly impossible to mitigate, the researchers say. “The only hope for solving this problem…is the recovery of the permafrost, which of course would involve pretty massive emissions reductions at this point,” Sullivan tells Chemical & Engineering News. And the ripple effects of permafrost thaw are not limited to the Salmon River. The process can occur in any waterway located near permafrost covering sulfide-rich bedrock, and scientists are using satellite imagery to look for other rivers and streams that might be affected. The high levels of toxic metals in the Salmon River might help explain a recent drop in the number of chum salmon returning to spawn, the researchers say. But, they add, they need to conduct more research to confirm that hunch. Even if the pollution is not to blame for the depressed salmon runs, it’s likely still affecting the local food chain. “It would be very hard, for instance, for a bear to fish for a salmon just because of the turbidity,” Sullivan tells the Alaska Beacon’s Yereth Rosen. “Raptors would have a really hard time catching a fish if they were fishing there.” The water is simply too cloudy, he says, citing his own failed attempts to fish the river. The metals also seem to be harming aquatic insects, such as stoneflies and mayflies, a source of food for many fish, per Science’s Warren Cornwall. In parts of the Salmon River with high levels of aluminum and iron, for instance, the scientists found very few insect larvae. “We have no idea when that process might reach its conclusion and how many new acid seeps might develop,” Sullivan tells the Alaska Beacon. Get the latest stories in your inbox every weekday.

Jane Goodall, dogged advocate for the natural world, has died aged 91

Acclaimed conservationist and chimpanzee expert Jane Goodall has died, leaving behind a legacy of empathy for primates and the natural world

Jane Goodall studying the behaviour of a chimpanzee during her research in TanzaniaPenelope Breese/Liaison Renowned conservationist Jane Goodall has died at the age of 91. She spent decades studying and advocating for chimpanzees, became the world’s leading expert on our closest primate relatives and transformed our understanding of humankind. She leaves behind a towering legacy of empathy and care for the natural world. According to a 1 October statement from the Jane Goodall Institute, she died of natural causes while in California on a speaking tour. Goodall began studying chimpanzees at Gombe Stream National Park in Tanzania in 1960. She made monumental strides in understanding their behaviours and group dynamics. Over the following 65 years, she became not just an expert but an outspoken advocate, teaching the world about the similarities between humans and other primates and shedding light on the plight chimpanzees and other animals in the wild face from climate change, poaching and habitat destruction. In 1977, she established her eponymous institute, a non-profit with the goal of studying and protecting primates and their habitats while increasing public understanding of the natural world. Over time, the institute’s mission expanded beyond studying primates – for example, by starting community health initiatives across Africa and even forming a committee dedicated to protecting whales. Goodall was also a founder or board member for countless other environmental protection initiatives. She cited extraordinary patience as key to her achievements. “There were moments when I was depressed, and the chimps were running away, and I was a long time in the field. I thought: oh bother, drat. [But] if I’d given up, I would never have forgiven myself. I could never live with myself,” she told New Scientist in 2022. Later in her life, Goodall spent most of her energy on conservation activism, travelling the world to get out the message that animals – all of them, not just chimpanzees – and humanity aren’t so different after all. She never stopped pushing for us to treat the natural world better. 

Concrete “battery” developed at MIT now packs 10 times the power

Improved carbon-cement supercapacitors could turn the concrete around us into massive energy storage systems.

Concrete already builds our world, and now it’s one step closer to powering it, too. Made by combining cement, water, ultra-fine carbon black (with nanoscale particles), and electrolytes, electron-conducting carbon concrete (ec3, pronounced “e-c-cubed”) creates a conductive “nanonetwork” inside concrete that could enable everyday structures like walls, sidewalks, and bridges to store and release electrical energy. In other words, the concrete around us could one day double as giant “batteries.”As MIT researchers report in a new PNAS paper, optimized electrolytes and manufacturing processes have increased the energy storage capacity of the latest ec3 supercapacitors by an order of magnitude. In 2023, storing enough energy to meet the daily needs of the average home would have required about 45 cubic meters of ec3, roughly the amount of concrete used in a typical basement. Now, with the improved electrolyte, that same task can be achieved with about 5 cubic meters, the volume of a typical basement wall.“A key to the sustainability of concrete is the development of ‘multifunctional concrete,’ which integrates functionalities like this energy storage, self-healing, and carbon sequestration. Concrete is already the world’s most-used construction material, so why not take advantage of that scale to create other benefits?” asks Admir Masic, lead author of the new study, MIT Electron-Conducting Carbon-Cement-Based Materials Hub (EC³ Hub) co-director, and associate professor of civil and environmental engineering (CEE) at MIT.The improved energy density was made possible by a deeper understanding of how the nanocarbon black network inside ec3 functions and interacts with electrolytes. Using focused ion beams for the sequential removal of thin layers of the ec3 material, followed by high-resolution imaging of each slice with a scanning electron microscope (a technique called FIB-SEM tomography), the team across the EC³ Hub and MIT Concrete Sustainability Hub was able to reconstruct the conductive nanonetwork at the highest resolution yet. This approach allowed the team to discover that the network is essentially a fractal-like “web” that surrounds ec3 pores, which is what allows the electrolyte to infiltrate and for current to flow through the system. “Understanding how these materials ‘assemble’ themselves at the nanoscale is key to achieving these new functionalities,” adds Masic.Equipped with their new understanding of the nanonetwork, the team experimented with different electrolytes and their concentrations to see how they impacted energy storage density. As Damian Stefaniuk, first author and EC³ Hub research scientist, highlights, “we found that there is a wide range of electrolytes that could be viable candidates for ec3. This even includes seawater, which could make this a good material for use in coastal and marine applications, perhaps as support structures for offshore wind farms.”At the same time, the team streamlined the way they added electrolytes to the mix. Rather than curing ec3 electrodes and then soaking them in electrolyte, they added the electrolyte directly into the mixing water. Since electrolyte penetration was no longer a limitation, the team could cast thicker electrodes that stored more energy.The team achieved the greatest performance when they switched to organic electrolytes, especially those that combined quaternary ammonium salts — found in everyday products like disinfectants — with acetonitrile, a clear, conductive liquid often used in industry. A cubic meter of this version of ec3 — about the size of a refrigerator — can store over 2 kilowatt-hours of energy. That’s about enough to power an actual refrigerator for a day.While batteries maintain a higher energy density, ec3 can in principle be incorporated directly into a wide range of architectural elements — from slabs and walls to domes and vaults — and last as long as the structure itself.“The Ancient Romans made great advances in concrete construction. Massive structures like the Pantheon stand to this day without reinforcement. If we keep up their spirit of combining material science with architectural vision, we could be at the brink of a new architectural revolution with multifunctional concretes like ec3,” proposes Masic.Taking inspiration from Roman architecture, the team built a miniature ec3 arch to show how structural form and energy storage can work together. Operating at 9 volts, the arch supported its own weight and additional load while powering an LED light.However, something unique happened when the load on the arch increased: the light flickered. This is likely due to the way stress impacts electrical contacts or the distribution of charges. “There may be a kind of self-monitoring capacity here. If we think of an ec3 arch at architectural scale, its output may fluctuate when it’s impacted by a stressor like high winds. We may be able to use this as a signal of when and to what extent a structure is stressed, or monitor its overall health in real time,” envisions Masic.The latest developments in ec³ technology bring it a step closer to real-world scalability. It’s already been used to heat sidewalk slabs in Sapporo, Japan, due to its thermally conductive properties, representing a potential alternative to salting. “With these higher energy densities and demonstrated value across a broader application space, we now have a powerful and flexible tool that can help us address a wide range of persistent energy challenges,” explains Stefaniuk. “One of our biggest motivations was to help enable the renewable energy transition. Solar power, for example, has come a long way in terms of efficiency. However, it can only generate power when there’s enough sunlight. So, the question becomes: How do you meet your energy needs at night, or on cloudy days?”Franz-Josef Ulm, EC³ Hub co-director and CEE professor, continues the thread: “The answer is that you need a way to store and release energy. This has usually meant a battery, which often relies on scarce or harmful materials. We believe that ec3 is a viable substitute, letting our buildings and infrastructure meet our energy storage needs.” The team is working toward applications like parking spaces and roads that could charge electric vehicles, as well as homes that can operate fully off the grid.“What excites us most is that we’ve taken a material as ancient as concrete and shown that it can do something entirely new,” says James Weaver, a co-author on the paper who is an associate professor of design technology and materials science and engineering at Cornell University, as well as a former EC³ Hub researcher. “By combining modern nanoscience with an ancient building block of civilization, we’re opening a door to infrastructure that doesn’t just support our lives, it powers them.”

Evolution may explain why women live longer than men

In most mammals, females live longer than males, but in birds the trend goes the other way – a study of over 1000 species points to possible reasons for these differences

Women live longer than men on average in every countryPeter Cavanagh/Alamy We now have a better idea of why women live longer than men, on average, thanks to the most comprehensive analysis yet of the differences in lifespan between male and female mammals and birds. The average global life expectancy is about 74 years for women and 68 years for men. There are various ideas to explain why women tend to live longer than men, including the suggestion that young men are more likely to die in accidents or conflicts, and that women are better protected against potentially harmful mutations in the sex-determining chromosomes than men, but the picture is far from complete. To search for clues from other animals, Johanna Stärk at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, and her colleagues analysed data on life expectancy in 1176 species – 528 mammals and 648 birds – in zoos as well as in wild populations. They found that in 72 per cent of the mammal species, females live longer than males, by 12 or 13 per cent on average. But in birds, males tend to outlive females in 68 per cent of the species, surviving about 5 per cent longer on average. The researchers say this trend backs up the idea that sex chromosomes account for some of the differences in lifespan. In mammals, having two copies of the X chromosome makes an individual genetically female, while males have two different sex chromosomes, an X and a Y. In theory, females are better protected against harmful mutations in the sex chromosomes, because the second copy of the X chromosome acts as a backup. In birds, the sex determination system is the other way around: females have two different sex chromosomes, called Z and W, while males have two Z chromosomes. So the different life expectancy trends in mammals and birds back up the idea that the sex with different chromosomes – the heterogametic sex – incurs a longevity cost. “But what was very interesting is that we found exceptions,” says team member Fernando Colchero, also at the Max Planck Institute for Evolutionary Anthropology. “And with those exceptions, our idea was to test other evolutionary hypotheses for why these sex differences occur.” Digging deeper into the data, the team found that mating systems seem to play a role. In polygamous mammals where there is strong competition for mates – such as baboons, gorillas and chimpanzees – males generally die earlier than females. “Due to competition for mating opportunities, individuals – typically the males – will invest into traits favoured by sexual selection, such as large body size, ornamental feathers or antlers,” says Nicole Riddle at the University of Alabama at Birmingham. “These traits are costly to produce, and there are typically other costs associated with the competition for mating opportunities, for example through fights with other males.” These factors will mean that the individual has less resources available to invest in its own long-term survival, she says. Males that invest in costly traits to win mates may have shorter lifespans as a resultRebius/Shutterstock This is also true of birds with polygamous mating systems. “Overall, this may also explain why the male advantage in birds is considerably lower than the female advantage in mammals,” says Pau Carazo at the University of Valencia in Spain. He says that in mammals, both the genetic factor and sexual selection traits work in the same direction in shortening male lifespan, whereas in birds the pressures may balance each other out, because males are often involved in strong sexual selection, but females bear the costs of heterogamy. Stärk and her colleagues also found that the sex that invests more in raising offspring tends to live longer. In mammals, this is often the females. In long-lived species like humans or other primates, this is probably evolutionarily advantageous, because it helps females survive until their offspring are sexually mature themselves. However, there were exceptions. “Birds of prey are the opposite of everything that we’re finding in the other species,” says Stärk. “The females are larger, and it’s often the females that engage much more in protection of the territory, but still females live longer.” Why is a mystery, she says. The lifespan differences between sexes are smaller in zoo populations than in wild populations, says Carazo, probably because life in captivity minimises environmental pressures like fights, predation and disease. This control over the environment might also be why lifespan differences between the sexes in humans have been shrinking, he says, although they might never go away entirely. “There are still some very strongly coded differences – physiological differences and genetic differences – between men and women,” says Colchero. “Who knows where medical sciences are going to take us, but in general, we don’t expect that those differences are completely going to disappear.”

Wildlife Advocate and Primate Expert Jane Goodall Dies at 91

By Susan Heavey(Reuters) -Scientist and global activist Jane Goodall, who turned her childhood love of primates into a lifelong quest for...

(Reuters) -Scientist and global activist Jane Goodall, who turned her childhood love of primates into a lifelong quest for protecting the environment, died on Wednesday at the age of 91, the institute she founded said.Goodall died of natural causes, the Jane Goodall Institute said in a social media post."Dr. Goodall’s discoveries as an ethologist revolutionized science, and she was a tireless advocate for the protection and restoration of our natural world," it said.The primatologist-turned-conservationist spun her love of wildlife into a life-long campaign that took her from a seaside English village to Africa and then across the globe in a quest to better understand chimpanzees, as well as the role that humans play in safeguarding their habitat and the planet's health overall.Goodall was a pioneer in her field, both as a female scientist in the 1960s and for her work studying the behavior of primates. She created a path for a string of other women to follow suit, including the late Dian Fossey.She also drew the public into the wild, partnering with the National Geographic Society to bring her beloved chimps into their lives through film, TV and magazines.She upended scientific norms of the time, giving chimpanzees names instead of numbers, observing their distinct personalities, and incorporating their family relationships and emotions into her work. She also found that, like humans, they use tools."We have found that after all there isn't a sharp line dividing humans from the rest of the animal kingdom," she said in a 2002 TED Talk.As her career evolved, she shifted her focus from primatology to climate advocacy after witnessing widespread habitat devastation, urging the world to take quick and urgent action on climate change."We're forgetting that were part of the natural world," she told CNN in 2020. "There's still a window of time."In 2003, she was appointed a Dame of the British Empire and, in 2025, she received the U.S. Presidential Medal of Freedom.Born in London in 1934 and then growing up in Bournemouth on England's south coast, Goodall had long dreamed of living among wild animals. She said her passion for animals, stoked by the gift of a stuffed toy gorilla from her father, grew as she immersed herself in books such as "Tarzan" and "Dr. Dolittle."She set her dreams aside after leaving school, unable to afford university. She worked as a secretary and then for a film company until a friend's invitation to visit Kenya put the jungle - and its inhabitants - within reach.After saving up money for the journey, by boat, Goodall arrived in the East African nation in 1957. There, an encounter with famed anthropologist and paleontologist Dr. Louis Leakey and his wife, archaeologist Mary Leakey, set her on course to work with primates.Under Leakey, Goodall set up the Gombe Stream Chimpanzee Reserve, later renamed the Gombe Stream Research Centre, near Lake Tanganyika in present-day Tanzania. There she discovered chimpanzees ate meat, fought fierce wars, and perhaps most importantly, fashioned tools in order to eat termites."Now we must redefine tool, redefine man, or accept chimpanzees as humans," Leakey said of the discovery.Although she eventually paused her research to earn a PhD at Cambridge University, Goodall remained in the jungle for years. Her first husband and frequent collaborator was wildlife cameraman Hugo van Lawick.Through the National Geographic's coverage, the chimpanzees at Gombe Stream soon became household names - most famously, one Goodall called David Greybeard for his silver streak of hair.Nearly thirty years after first arriving in Africa, however, Goodall said she realized she could not support or protect the chimpanzees without addressing the dire disappearance of their habitat. She said she realized she would have to look beyond Gombe, leave the jungle, and take up a larger global role as a conservationist.In 1977, she set up the Jane Goodall Institute, a nonprofit organization aimed at supporting the research in Gombe as well as conservation and development efforts across Africa. Its work has since expanded worldwide and includes efforts to tackle environmental education, health and advocacy.She made a new name for herself, traveling an average of 300 days a year to meet with local officials in countries around the world and speaking with community and school groups. She continued her world tours into her 90s.She later expanded the institute to include Roots & Shoots, a conservation program aimed at children.It was a stark shift from her isolated research, spending long days watching chimpanzees."It never ceases to amaze me that there's this person who travels around and does all these things," she told the New York Times during a 2014 trip to Burundi and back to Gombe. "And it's me. It doesn't seem like me at all."A prolific author, she published more than 30 books with her observations, including her 1999 bestseller "Reason For Hope: A Spiritual Journey," as well as a dozen aimed at children.Goodall said she never doubted the planet's resilience or human ability to overcome environmental challenges."Yes, there is hope ... It's in our hands, it's in your hands and my hands and those of our children. It's really up to us," she said in 2002, urging people to "leave the lightest possible ecological footprints."She had one son, known as 'Grub,' with van Lawick, whom she divorced in 1974. Van Lawick died in 2002.In 1975, she married Derek Bryceson. He died in 1980.(Writing by Susan Heavey, Editing by Rosalba O'Brien)Copyright 2025 Thomson Reuters.Photos You Should See – Sept. 2025

Jane Goodall, Legendary Primatologist and Anthropologist, Dies at 91

She was considered the world’s leading expert on chimpanzees and was renowned for her global conservation efforts

Jane Goodall, Legendary Primatologist and Anthropologist, Dies at 91 She was considered the world’s leading expert on chimpanzees and was renowned for her global conservation efforts Jane Goodall visiting a chimpanzee rescue center in 2018 in Entebbe, Uganda SUMY SADURNI / AFP via Getty Images Jane Goodall was just 26 years old when she first stepped foot onto the pebbly shore of what’s now Gombe Stream National Park in July of 1960. Though she lacked any formal scientific training, she nonetheless was about to embark on a rare six-month-long field study to observe the elusive chimpanzees living in the Tanzanian forest. Though researchers knew at the time that humans and chimps were closely related, they knew next to nothing about the behavior of the apes in the wild. For three months, Goodall traipsed through the forest, avoided predators and navigated across difficult terrain without making any meaningful observations. Dense leaf growth prevented her from seeing the animals at a distance, and when she attempted to approach the chimps for a closer view, they fled from her. But Goodall was patient, and she eventually managed to gain the trust of a high-ranking male chimp with silver facial hair who she named David Greybeard. Finally, in November the same year, she made an astonishing observation: David Greybeard had bent a twig, stripped off its leaves and used it to “fish” termites from a nest. The ability to use and make tools was previously thought to be what set humans apart from other animals. When she told her mentor, famed archaeologist Louis Leakey, what she saw, he responded: “Now we must redefine tool, redefine man or accept chimpanzees as human.” “She was a pioneer,” says Craig Stanford, an anthropologist and biologist at the University of Southern California and the co-director of the USC Jane Goodall Research Center. “At a time when people thought a long study was six weeks, she went out and spent months and then years, really being immersed in the community of chimps, seeing it from the inside. Nobody had really thought about that before.” Primatologist, conservationist and naturalist Jane Goodall has died at age 91 of natural causes, as her namesake nonprofit, the Jane Goodall Institute, announced in a social media statement on Wednesday. She had been in California as part of an ongoing speaking tour in the United States. “Goodall’s discoveries as an ethologist revolutionized science, and she was a tireless advocate for the protection and restoration of our natural world,” reads the statement. Goodall holds a baby monkey while visiting Chile. HECTOR RETAMAL / AFP via Getty Images Goodall was considered the world’s leading expert on chimpanzees and was renowned for her global conservation efforts. Her decades-long work documenting chimp behavior in Tanzania’s Gombe Stream National Park fundamentally changed our understanding of primates. Not only did she discover that chimps make tools, but her research into the social lives of these primates challenged long-held beliefs that humans are the only species to wage war, manipulate objects and have sophisticated emotions. Goodall also helped re-center conservation efforts around meeting both the needs of local communities and the environment in an approach called “TACARE,” an acronym for Lake Tanganyika Catchment Reforestation and Education. The Jane Goodall Institute has put 3.4 million acres of habitat under conservation action plans and has worked with 130 communities living in or near chimpanzee habitat. As one of the most well-known naturalists in the world and one of the first women to rise to the top in the field of primatology, Goodall inspired generations of young women to pursue careers in science. She spearheaded programs in Uganda and Tanzania to help girls stay in school by offering scholarships, providing them with the training and materials to make reusable sanitary pads and creating a peer support network. Goodall was born in 1934 in London. Ever since she was a child, she recalled having a fascination and love for animals. She would spend hours watching squirrels, birds and insects in the garden of her house. Once, when she was about 4, she disappeared to a henhouse for hours to figure out how the birds laid their eggs, unaware that her family had reported her missing to the police. Her reading list was filled with books like Doctor Dolittle and Tarzan of the Apes. (Later in life, she often joked that Tarzan had married the wrong Jane.) After first reading about Tarzan’s adventures in the jungle, a then 10-year-old Goodall dreamed of traveling to Africa to live and work among wild animals. “Everybody laughed at me,” she said in an interview. “Girls didn’t do that sort of thing back then, but my mother always said if you really want something then you’re going to have to work really hard, take advantage of opportunity and never give up.” Her opportunity came about five years after she graduated from high school. Goodall attended secretarial school, working several jobs to save up money. By 1957, she had earned enough to buy her boat passage to Kenya, where she visited a school friend on her family’s farm. During that trip, she arranged to meet with archaeologist Louis Leakey in Nairobi. Leakey’s secretary had quit two days prior to their meeting, and he promptly hired Goodall as a replacement, she wrote in The Book of Hope. Around that time, the archaeologist, who had gained fame for his human origins research, was looking for someone to undertake an extended observation of great apes in Gombe, thinking the animals could be a window into the lives of early humans. Goodall’s patience and desire to understand animals convinced Leakey she was the right fit for the job. Though she lacked formal scientific training, Leakey believed this would help her make unbiased observations. “He told me that the chimpanzee habitat was remote and rugged and that there would be dangerous animals—and that the chimpanzees themselves were four times stronger than humans,” Goodall said. “Oh, how I longed to undertake an adventure like the one Leakey was envisioning.” So, in 1960, Goodall set out to the forest of Tanzania—a highly unorthodox venture for a young woman at the time. Authorities had insisted she have a companion with her, so her mother, 54-year-old Margaret (“Vanne”), went along. The two shared a single tent furnished with cots, a table and chairs. Goodall broke decades of scientific research precedent by naming the chimpanzees instead of using numbers to identify them—a highly controversial practice that irritated conventional academics. When she suggested that chimpanzees have distinct personalities, she was criticized for anthropomorphizing them. Goodall’s study of the chimps in Gombe extended more than 60 years and led to multiple discoveries, including that chimps are omnivorous, exhibit human-like compassion and have deep mother-infant bonds. “Because she was in Gombe for so long, we learned about generations of chimps,” says Mary Lee Jensvold, a primate communication scientist at Central Washington University. “We learned about things that you could only discover by being there for a long time, like warfare between neighboring communities.” In 1961, Goodall was one of only a few students to enter into a Cambridge University PhD program without first earning her bachelor’s degree. After graduating, she continued her work in Tanzania and helped establish the Gombe Stream Research Center. Goodall’s career pivoted from research, following the “Understanding Chimpanzees” conference she helped organize in Chicago in 1986. The sessions she attended left her in shock—while she had heard of the effects of deforestation and the inhumane conditions chimps faced in medical research labs, she “had no idea the extent of it,” she said to Living on Earth’s Steve Curwood in 2020. “I went as a scientist,” she said. “I left as an activist.” Goodall left behind her research at Gombe and began traveling the world to build conservation programs, give lectures and promote environmentalism. “She had this epiphany that the research was great, fascinating, but ultimately didn’t matter if the animals go extinct,” says Stanford. “So then from that point on…she was on this global mission to save those animals.” Stanford met Goodall back in the 1980s, after he sent her a letter proposing a project to study chimps and the animals they eat. Goodall liked his idea, and he went to Tanzania to complete the research. In the 1990s, he spent six years working part-time in Tanzania and living with Goodall until he built his own house on the shore of Lake Tanganyika. Most of the time when she came to Gombe, Stanford remembers Goodall was often out with CNN, “60 Minutes” or other film crews that were following her life. But in the brief moments he’d spend working alone with her in the forest, Stanford remarked that he was always struck by how she quickly picked up on chimpanzee behaviors he’d never noticed, even in a year of watching them. “Jane was just a brilliant observer,” he says. “That’s something that is critical for anybody who's a primatologist.” Goodall was an incredible champion who was relentless in the work she did, says Jensvold, who’s also the associate director of the Fauna Foundation. The Fauna Foundation cares for former biomedical research chimps, including some that came from the Laboratory for Experimental Medicine and Surgery in Primates (LEMSIP) in New York after it was shut down in 1997. Jensvold recalls when Goodall visited LEMSIP in the 1980s and saw the conditions in which the chimps were kept. Goodall told the lab the chimps needed enrichment activities—a new concept at the time—and helped send one of Jensvold’s graduate student classmates to the lab to teach technicians enrichment techniques. Goodall’s involvement often led to action. “Because she was so influential,” Jensvold says. “She wasn’t afraid to talk about what was going on in labs, and that this is making them crazy.” While the conference in 1986 led Goodall to move from research into full-time activism, the famed primatologist had already founded the Jane Goodall Institute in 1977 to continue her chimpanzee research and work toward chimp protection, conservation and environmental education. Her work focused heavily on centering local communities in conservation and helping with access to food, health care and education. “As outsiders, it’s very easy to say ‘oh, don’t eat bush meat, or ‘don’t do this, and don’t do that,’ until you really see the lives and daily struggles of these people,” says Melissa Hawkins, the curator of mammals at the Smithsonian’s National Museum of Natural History. “I think it’s really amazing the work that she’s done to kind of fill that void and show the rest of the world, for decades now, how important it is to not just blame the people but figure out ways to help.” Goodall created an initiative through the institute in 1991 called Roots and Shoots, which empowers youth to make positive changes for the environment and surrounding communities. Her work in conservation and human rights led the U.N. Secretary-General to name her a U.N. Messenger of Peace in 2002. In 2004, she became a Dame Commander of the British Empire. Throughout her illustrious career, she received numerous other awards and honors, including the Kyoto Prize, the French Legion of Honour and the Medal of Tanzania. Goodall speaks to a crowd in South Africa. Theo Jeptha / Die Burger / Gallo Images via Getty Images In addition to her conservation and primatology prowess, those who knew Goodall say she had a natural charisma that people immediately took note of. “She had a certain energy,” Stanford says. “I won’t say spiritual, but some kind of a metaphysical energy about her that everybody sensed.” Stanford recalls once being with Goodall in Chicago. He was sitting with her at a sidewalk café when a middle-aged woman spotted Goodall, stopped abruptly and started to cry. This wasn’t the only time Stanford had witnessed such a response to her presence. “When you see other people’s reaction, it’s so viscerally, deeply emotional, it really tells you—it reminds you—what she means to so many people,” he says. “She’s not just a celebrity. She’s not just an environmentalist. She’s not just a pioneering scientist. She’s this cultural touchstone who represents something pure and good that she devoted her life to.” Though shy and soft-spoken, Goodall always spoke out about climate change and humans’ unhealthy relationship with the planet. She used her own story to inspire people to act on the environment. Goodall often talked at length about her own spirituality, which she said grew while spending time out in the forest and feeling the divine energy and interconnectedness of all living things. This spiritual power guided Goodall on her mission to spread hope and peace throughout the world, she said. Some years ago, during a lecture, Goodall was asked what her next great adventure would be. Then in her 80s, Goodall thought for a second before replying: “dying.” The crowd went silent, then a few people “tittered nervously,” she said in 2022. But Goodall continued: “When you die, there’s either nothing, which is fine, or there’s something, which I happen to believe,” she said. “And if there is something beyond our death, then I cannot think of a greater adventure than finding out what that something is.” Get the latest Science stories in your inbox.

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