Biological Sciences

Researchers have recreated a miniature human bone marrow system that mirrors the real structure found inside our bones. The model includes the full mix of cells and signals needed for blood production and even maintains this process for weeks. It could transform how scientists study blood cancers and test new drugs. In the future, it may support more personalized treatment strategies.

Chameleons’ extraordinary ability to move their eyes independently stems from a previously overlooked anatomical marvel: long, tightly coiled optic nerves hidden behind their bulging eyes. Modern CT imaging finally revealed this structure, which centuries of dissections and even the scrutiny of figures like Aristotle and Newton failed to capture. The coils give the eyes extra slack, enabling nearly 360-degree scanning without neck mobility.

Scientists are turning venom, radioisotopes, engineered proteins, and AI into powerful new tools against cancer. From Amazonian scorpions yielding molecules that kill breast cancer cells as effectively as chemotherapy, to improved fibrin sealants and custom-grown bioactive factors, researchers are pushing biotechnology into uncharted territory. Parallel teams are advancing radiotheranostics that diagnose and destroy tumors with precision, while others forge experimental vaccines that train the immune system using hybrid dendritic cells.

Scientists mapped the Bas63 bacteriophage in unprecedented detail, uncovering how its tail machinery infects bacteria. The structure reveals rare whisker-collar features and distant evolutionary ties reaching back billions of years. These insights could guide new phage therapies and innovations in medicine, agriculture, and industry.

Scientists have revealed that Hawaiian monk seals produce far more underwater vocalizations than previously believed. Their newly discovered 25-call repertoire includes complex combinations and a rare foraging-related call. These findings highlight an intricate acoustic world unfolding beneath the waves. The research opens the door to better protection strategies as human-made ocean noise continues to rise.

Across the planet, animals are increasingly suffering from chronic illnesses once seen only in humans. Cats, dogs, cows, and even marine life are facing rising rates of cancer, diabetes, arthritis, and obesity — diseases tied to the same factors affecting people: genetics, pollution, poor nutrition, and stress. A new study led by scientists at the Agricultural University of Athens proposes a unified model linking these conditions across species.

Researchers have sequenced the oldest RNA ever recovered, taken from a woolly mammoth frozen for nearly 40,000 years. The RNA reveals which genes were active in its tissues, offering a rare glimpse into its biology and final moments. Surprisingly, the team also identified ancient microRNAs and rare mutations that confirm their mammoth origin. The finding shows that RNA can endure millennia—reshaping how scientists study extinct species.

Scientists discovered that a week of full submergence is enough to kill most rice plants, making flooding a far greater threat than previously understood. Intensifying extreme rainfall events may amplify these losses unless vulnerable regions adopt more resilient rice varieties.

Scientists uncovered Australia’s oldest known crocodile eggshells, revealing the secret lives of ancient mekosuchine crocodiles that once dominated inland ecosystems. These crocs filled surprising niches, including terrestrial stalking and possibly tree-dropping ambushes.

Scientists studying aging found that sensory inputs like touch and smell can cancel out the lifespan-boosting effects of dietary restriction by suppressing the key longevity gene fmo-2. When overactivated, the gene makes worms oddly indifferent to danger and food, suggesting trade-offs between lifespan and behavior. The work highlights how deeply intertwined the brain, metabolism, and environment are. These pathways may eventually be targeted to extend life without extreme dieting.

Scientists have identified a new crocodile precursor that looked deceptively dinosaur-like and hunted with speed and precision. Named Tainrakuasuchus bellator, the armored “warrior” lived 240 million years ago and occupied a powerful niche in the Triassic food chain. Its fossils reveal deep evolutionary links between South America and Africa. The find sheds light on a vibrant ecosystem that existed just before dinosaurs emerged.

In a first-of-its-kind study, scientists found that bumblebees can tell the difference between short and long light flashes, much like recognizing Morse code. The insects learned which signal led to a sweet reward, demonstrating an unexpected sense of timing. This ability may stem from a fundamental neural process, suggesting that even tiny brains have complex time-tracking mechanisms relevant to evolution and AI.

Scientists at EPFL have unraveled the mystery behind why biological nanopores, tiny molecular holes used in both nature and biotechnology, sometimes behave unpredictably. By experimenting with engineered versions of the bacterial pore aerolysin, they discovered that two key effects, rectification and gating, stem from the pore’s internal electrical charges and their interaction with passing ions. The team even built nanopores that imitate brain-like “learning,” hinting at future applications in bio-inspired computing and ion-based processors.

Japanese researchers uncovered a universal rule describing why life’s growth slows despite abundant nutrients. Their “global constraint principle” integrates classic biological laws to show that multiple factors limit cellular growth in sequence. Verified through E. coli simulations, it provides a powerful new lens for studying living systems. The work could boost crop yields and biomanufacturing efficiency.

Scientists have turned to advanced AI to decode the intricate ecosystem of gut bacteria and their chemical signals. Using a Bayesian neural network called VBayesMM, researchers can now identify genuine biological links rather than random correlations. The system has already outperformed traditional models in studies of obesity, sleep disorders, and cancer.

Researchers from the University of Vienna discovered MISO bacteria that use iron minerals to oxidize toxic sulfide, creating energy and producing sulfate. This biological process reshapes how scientists understand global sulfur and iron cycles. By outpacing chemical reactions, these microbes could help stop the spread of oceanic dead zones and maintain ecological balance.

Deep beneath the ocean, scientists uncovered thriving microbial life in one of Earth’s harshest environments—an area with a pH of 12, where survival seems nearly impossible. Using lipid biomarkers instead of DNA, researchers revealed how these microbes persist by metabolizing methane and sulfate. The discovery not only sheds light on deep-sea carbon cycling but also suggests that life may have originated in similar extreme conditions, offering a glimpse into both Earth’s past and the limits of life itself.

In Death Valley’s relentless heat, Tidestromia oblongifolia doesn’t just survive—it thrives. Michigan State University scientists discovered that the plant can quickly adjust its photosynthetic machinery to endure extreme temperatures that would halt most species. Its cells reorganize, its genes switch on protective functions, and it even reshapes its chloroplasts to keep producing energy. The findings could guide the creation of crops capable of withstanding future heat waves.

A revolutionary eDNA test detects endangered hammerhead sharks using genetic traces left in seawater, eliminating the need to capture or even see them. This powerful tool could finally uncover where these elusive species still survive, and help protect them before they disappear for good.

Researchers have, for the first time, estimated how quickly E. coli bacteria can spread between people — and one strain moves as fast as swine flu. Using genomic data from the UK and Norway, scientists modeled bacterial transmission rates and discovered key differences between strains. Their work offers a new way to monitor and control antibiotic-resistant bacteria in both communities and hospitals.

When Surtsey erupted from the sea in 1963, it became a living experiment in how life begins anew. Decades later, scientists discovered that the plants colonizing this young island weren’t carried by the wind or floating on ocean currents, but delivered by birds — gulls, geese, and shorebirds serving as winged gardeners. Their findings overturn long-held beliefs about seed dispersal and reveal how deeply interconnected life truly is.

Beneath the ocean’s surface, bacteria have evolved specialized enzymes that can digest PET plastic, the material used in bottles and clothes. Researchers at KAUST discovered that a unique molecular signature distinguishes enzymes capable of efficiently breaking down plastic. Found in nearly 80% of ocean samples, these PETase variants show nature’s growing adaptation to human pollution.

Long ago, some saltwater fish adapted to freshwater — and in doing so, developed an extraordinary sense of hearing rivaling our own. By examining a 67-million-year-old fossil, researchers from UC Berkeley discovered that these “otophysan” fish didn’t evolve their sensitive Weberian ear system in rivers, as long thought, but rather began developing it in the ocean before migrating inland. This new timeline suggests two separate invasions of freshwater, explaining why so many freshwater species exist today.

Okayama scientists have crafted a new wine grape, Muscat Shiragai, merging the wild Shiraga and Muscat of Alexandria. The variety is part of a larger collaboration between academia, industry, and local government to boost regional identity through wine. Early tastings revealed a sweet, smooth flavor, and wider cultivation is planned.

Researchers at UC San Diego have figured out how to get bacteria to produce xanthommatin, the pigment that lets octopuses and squids camouflage. By linking the pigment’s production to bacterial survival, they created a self-sustaining system that boosts yields dramatically. This biotechnological leap could revolutionize materials science, cosmetics, and sustainable chemistry.

Scientists uncovered how the amino acid leucine enhances mitochondrial efficiency by preserving crucial proteins that drive energy production. By downregulating the protein SEL1L, leucine prevents unnecessary degradation and strengthens the cell’s power output. The findings link diet directly to mitochondrial health and suggest potential therapeutic applications for energy-related diseases.

Penn State scientists uncovered an ancient bacterial defense where dormant viral DNA helps bacteria fight new viral threats. The enzyme PinQ flips bacterial genes to create protective proteins that block infection. Understanding this mechanism could lead to breakthroughs in antivirals, antibiotic alternatives, and industrial microbiology.

On the Canary Islands, scientists discovered that the spider Dysdera tilosensis has halved its genome size in just a few million years—defying traditional evolutionary theories that predict larger, more repetitive genomes in island species. This unexpected downsizing, revealed through advanced genomic sequencing, shows that despite its smaller DNA, the island spider is genetically more diverse than its continental relatives.

UC Davis scientists uncovered Aptostichus ramirezae, a new trapdoor spider species living under California’s dunes. Genetic analysis revealed it was distinct from its close relative, Aptostichus simus. The species was named after pioneering arachnologist Martina Ramirez. Researchers warn that shrinking coastal habitats could threaten both species’ survival.

Scientists are revolutionizing how new marine species are described through the Ocean Species Discoveries initiative. Using advanced lab techniques, researchers recently unveiled 14 new species from ocean depths exceeding 6,000 meters. Their findings include a record-setting mollusk, a carnivorous bivalve, and a popcorn-like parasitic isopod. The project aims to make taxonomy faster, more accessible, and globally collaborative.

The debate over Nanotyrannus’ identity is finally over. A remarkably preserved fossil proves it was a mature species, not a teenage T. rex. This discovery rewrites how scientists understand tyrannosaur evolution and Cretaceous predator diversity. For the first time, T. rex must share its throne with a smaller, faster rival.

After decades of mystery, scientists have finally proven that Europe’s largest bat, the greater noctule, hunts and eats small songbirds mid-air—more than a kilometer above ground. Using tiny biologgers strapped to bats, researchers recorded astonishing dives and mid-flight chewing sounds confirming bird predation long suspected but never observed.

A pandemic-era breakthrough has allowed scientists to literally expand our view of plankton. By using ultrastructure expansion microscopy, researchers visualized the inner workings of hundreds of marine species for the first time. The effort, tied to the TREC expedition, maps the evolutionary architecture of life’s smallest ocean dwellers. It’s the start of a global atlas revealing how complexity evolved beneath the waves.

Researchers discovered that soil microbes in Kansas carry drought “memories” that affect how plants grow and survive. Native plants showed stronger responses to these microbial legacies than crops like corn, hinting at co-evolution over time. Genetic analysis revealed a key gene tied to drought tolerance, potentially guiding biotech efforts to enhance crop resilience. The work connects ecology, genetics, and agriculture in a novel way.

For decades, Paranthropus robustus has intrigued scientists as a powerful, big-jawed cousin of early humans. Now, thanks to ancient protein analysis, researchers have cracked open new secrets hidden in 2-million-year-old tooth enamel. These proteins revealed both sex and subtle genetic differences among fossils, suggesting Paranthropus might not have been one species but a more complex evolutionary mix.

Scientists in Japan have discovered Physalia mikazuki, a previously unknown species of Portuguese man-of-war, in northern waters for the first time. DNA and anatomical analysis confirmed it as distinct from tropical relatives. Ocean simulations suggest warming currents transported it northward, offering new clues about changing ecosystems. The find underscores both marine adaptation and safety concerns for beachgoers.

Fringe-lipped bats from Panama hunt like miniature lions, using a “hang-and-wait” strategy to capture large, energy-rich prey. High-tech biologging revealed they spend most of their time conserving energy and strike with remarkable accuracy. With success rates around 50%, they outperform even apex predators like lions and polar bears. Older bats become even more efficient, showing that experience sharpens their deadly precision.

Researchers have uncovered dozens of long-misidentified coelacanth fossils in British museums, some overlooked for more than a century. The study reveals that these ancient “living fossils” thrived in tropical seas during the Triassic Period, around 200 million years ago. By re-examining mislabeled bones and using X-ray scans, scientists discovered a once-flourishing community of coelacanths that hunted smaller marine reptiles.

From mini-brains to spider-inspired gloves and wolf apple coatings, scientists are turning eerie-sounding experiments into real innovations that could revolutionize health and sustainability. Lab-grown brain organoids may replace animal testing, spider-silk gloves could create instant wound dressings, wolf apple starch keeps veggies fresh, and researchers even found microplastics lurking in human retinas—offering both wonder and a warning about the modern world.

A new species of mountain lizard, Diploderma bifluviale, has been discovered in the upper Dadu River Valley of China. Its distinct traits and isolated habitat highlight the hidden biodiversity of the Hengduan Mountains.

UCL scientists found that human skulls evolved much faster than those of other apes, reflecting the powerful forces driving our brain growth and facial flattening. By comparing 3D models of ape skulls, they showed that humans changed about twice as much as expected. The findings suggest that both cognitive and social factors, not just intelligence, influenced our evolutionary path.

Researchers at QUT uncovered how corals reattach to reefs through a three-phase process involving tissue transformation, anchoring, and skeleton formation. Differences among species reveal why some corals grow and attach faster than others. Intriguingly, corals even digest their own tissue to heal and prepare for attachment. This insight could make coral restoration projects more precise and successful.

Beneath the ice of Antarctica’s Weddell Sea, scientists discovered a vast, organized city of fish nests revealed after the colossal A68 iceberg broke away. Using robotic explorers, they found over a thousand circular nests forming geometric patterns, each guarded by yellowfin noties. The expedition, initially aimed at studying the ice shelf and locating Shackleton’s Endurance, instead unveiled a thriving, structured ecosystem in one of the harshest places on Earth.

An international team of researchers led by scientists from the Max Planck Institute for Evolutionary Anthropology in Leipzig, working with 15 collaborators around the world, has conducted the most comprehensive study yet of lifespan differences between the sexes in mammals and birds. Their findings shed new light on one of biology’s enduring mysteries: why males and females age differently.

Fungi’s evolutionary roots stretch far deeper than once believed — up to 1.4 billion years ago, long before plants or animals appeared. Using advanced molecular dating and gene transfer analysis, researchers reconstructed fungi’s ancient lineage, revealing they were crucial in shaping Earth’s first soils and ecosystems.

Extinction rates are not spiraling upward as many believe, according to a large-scale study analyzing 500 years of data. Researchers found that species losses peaked about a century ago and have decreased since, with different drivers shaping past and present threats. Whereas invasive species once caused most island extinctions, habitat destruction now looms largest on continents.

A team of researchers has developed a floral-scented fungus that tricks mosquitoes into approaching and dying. The fungus emits longifolene, a natural scent that irresistibly draws them in. It’s harmless to humans, inexpensive to produce, and remains potent for months. This innovative biological control could be crucial as mosquitoes spread with climate change.

New research shows that hippos lived in central Europe tens of thousands of years longer than previously thought. Ancient DNA and radiocarbon dating confirm they survived in Germany’s Upper Rhine Graben during a milder Ice Age phase. Closely related to modern African hippos, they shared the landscape with cold-adapted giants like mammoths. The finding rewrites Ice Age history and suggests regional climates were far more diverse.

In a groundbreaking discovery, scientists at Trinity College Dublin have identified a "universal thermal performance curve" that governs how all living organisms respond to temperature. This finding reveals that evolution has been unable to escape a single, unifying rule linking performance and heat across every branch of life—from bacteria and plants to reptiles and fish. The curve shows that while organisms perform better as temperatures rise, performance rapidly collapses beyond an optimal point, posing grave risks in a warming world.

Reptiles don’t just pee, they crystallize their waste. Researchers found that snakes and other reptiles form tiny uric acid spheres, a water-saving evolutionary trick. This discovery could illuminate how to prevent gout and kidney stones in humans.

Scientists have unveiled Khankhuuluu, a new Mongolian dinosaur species that predates and closely resembles early Tyrannosaurs. With its long snout, small horns, and lean build, it represents a transitional form between swift mid-sized predators and giant apex hunters like T. rex. The find also suggests that large Tyrannosaurs first evolved in North America following an ancient migration from Asia.

MIT researchers discovered that the genome’s 3D structure doesn’t vanish during cell division as previously thought. Instead, tiny loops called microcompartments remain (and even strengthen) while chromosomes condense. These loops may explain the brief surge of gene activity that occurs during mitosis. The finding redefines how scientists understand the balance between structure and function in dividing cells.

In the mist-shrouded mountains of New Guinea, a Czech researcher has achieved a world-first — capturing photos, video, and data of the elusive Subalpine Woolly Rat, Mallomys istapantap. Once known only from museum specimens, this giant, shaggy rodent has been rediscovered after three decades, revealing a hidden ecosystem of biodiversity. Working alongside indigenous hunters, the expedition not only unveiled new scientific insights but also strengthened the bridge between local knowledge and modern research — offering hope for conservation in one of the planet’s last unexplored frontiers.

Common dolphins in the North Atlantic are living significantly shorter lives, with female longevity dropping seven years since the 1990s. Researchers found this decline by analyzing stranded dolphins, revealing a 2.4% drop in population growth linked to bycatch deaths and environmental pressures. The findings expose flaws in traditional counting methods and call for adaptive conservation measures, such as smarter fishing restrictions.

Naked mole-rats seem to have found nature’s cheat code for longevity. Scientists discovered that small tweaks in one of their proteins make it better at fixing DNA damage, helping the animals resist aging. Even fruit flies with the same changes lived longer, hinting at a universal way life can extend its own clock. It’s a glimpse into how evolution fine-tunes biology to fight time itself.

Researchers have developed a light-emitting sugar probe that exposes how marine microbes break down complex carbohydrates. The innovative fluorescent tool allows scientists to visualize when and where sugars are degraded in the ocean. This breakthrough helps map microbial activity and carbon cycling, providing new clues about how the ocean stores and releases carbon.

Researchers discovered the gene that gives a rare wheat variety its unusual “triple-grain” trait. When switched on, the gene helps wheat flowers produce extra grain-bearing parts. The finding could allow scientists to grow new, high-yield crops to meet global food demand. It’s a simple genetic change with world-changing potential.

EMBL researchers created SDR-seq, a next-generation tool that decodes both DNA and RNA from the same cell. It finally opens access to non-coding regions, where most disease-associated genetic variants lie. By revealing how these variants affect gene activity, scientists can better understand complex diseases and develop improved diagnostic tools.

Scientists discovered true teeth growing on the head of the spotted ratfish, a distant shark relative. The toothed structure, called a tenaculum, helps males hold onto females during mating. Genetic evidence shows these head teeth share the same origins as oral teeth, overturning assumptions that teeth only evolve in jaws. This discovery reshapes the story of dental evolution across vertebrates.

A parasitic worm uses static electricity to launch itself onto flying insects, a mechanism uncovered by physicists and biologists at Emory and Berkeley. By generating opposite charges, the worm and insect attract, allowing the leap to succeed far more often. High-speed cameras and mathematical modeling confirmed this “electrostatic ecology” in action.