A University of Copenhagen study found that regular coffee drinkers have higher gut bacteria diversity and lower small intestine pH. Participants who drank one to five cups daily also exhibited more frequent colon contractions than those who drank less.
This suggests coffee directly alters gut physiology, not just microbial composition. However, the observational design cannot prove causation, so a controlled intervention is needed to confirm these effects.
my other side: ivo.blogspot.com
Scott Evans, a curator at the American Museum of Natural History, details how 500-million-year-old Ediacaran fossils reveal specific motor behaviors. The evidence indicates these early marine organisms did not just exist but actively moved and turned. At least one species displayed a preference for turning to one side, marking the earliest known instance of lateralization.
This finding complicates the view of early complex life as simple, static mats, suggesting behavioral complexity emerged earlier than thought. However, the sample size remains small, and inferring internal biology from external traces is inherently speculative. It is a strong hint, not a definitive proof of neural coordination.
more: https://aeon.co/videos/how-a-palaeontologist-decodes-fossils-from-the-dawn-of-complex-life
my other side: ivo.blogspot.com
Researchers at the University of Geneva demonstrated that chemotaxis, the movement of cells toward chemical signals, drives the formation of hair follicles. Their mathematical model recreates the developmental patterns of both laboratory mice and the spiny mouse without relying on the traditional expansion-induction theory. The results show that local interactions between dermal cells and epidermal signals are sufficient to generate these structures.
This suggests a single, simple mechanism underlies the diversity of hair, feathers, and scales across species, rather than unique blueprints for each animal. However, the study is primarily computational, so experimental validation in living embryos is still needed to confirm the model's biological reality.
more: https://www.sciencedaily.com/releases/2026/11/261109205413.htm
my other side: ivo.blogspot.com
Researchers at the University of Michigan found that generative AI models use significantly more energy to process non-English text, with disparities ranging from 1.4 to 180 times that of English. Languages with non-Latin scripts, such as Hindi and Bengali, require up to 15 times more energy due to higher token counts. This inefficiency also correlates with lower accuracy in model outputs.
The finding highlights a structural bias where the majority of the global population faces higher costs and reduced reliability when using AI in their native tongues. While the study measures three specific open-source models, the issue persists across different hardware and scales. This suggests that current infrastructure actively disadvantages speakers of underrepresented languages.
my other side: ivo.blogspot.com
Researchers analyzed hair and seeds from a nearly 2,800-year-old Siberian tomb to find the oldest direct evidence of cannabis consumption. Chemical traces of cannabinol in the preserved hair indicate the individuals were exposed to THC, likely through smoke. The findings were confirmed by radiocarbon dating of approximately 1,000 cannabis seeds found in the grave.
This provides a rare molecular link between plant remains and human bodies in such an early period. However, the study cannot determine the method of consumption or the potency of the plants. It remains unclear if the Scythians cultivated these specific wild plants for their psychoactive effects.
more: https://www.sciencedaily.com/releases/2026/11/261106174528.htm
my other side: ivo.blogspot.com
Years with heavy oak acorn crops boost mouse numbers, which in turn raise nymphal tick numbers about 40% the following year. The effect appears two years after the mast event, showing a clear lag between tree fruiting and tick abundance. This pattern was uncovered through 35 years of continuous data from a New York forest study.
The finding offers a tangible early warning: monitoring acorn production could help predict periods of heightened Lyme exposure. However, the study was site‑specific and other factors—weather, predator dynamics, human behavior—also influence tick populations, so the link may not hold uniformly elsewhere.
more: https://www.sciencedaily.com/releases/2026/11/261106174518.htm
my other side: ivo.blogspot.com
New simulations show that X-ray bursts from nuclear blasts can deflect an asteroid by five to seventeen times more or less depending on which side is hit. The irregular shapes of real objects cause vastly different changes in speed and rotation compared to the smooth spheres used in older models.
This suggests we need precise 3D maps of incoming threats to aim a nuke correctly without shattering them. The study is a computational step, so the real challenge remains applying these findings to actual mission planning.
more: https://www.sciencedaily.com/releases/2026/11/261106174532.htm
my other side: ivo.blogspot.com
Researchers at UC Santa Cruz observed that psilocybin rapidly forms and matures neural connections while removing older ones in mice. Using two-photon microscopy, they tracked these structural changes over several weeks to confirm active synaptic remodeling. The study identified a specific group of cortical neurons responsible for this rewiring process.
The team successfully separated these cellular changes from the behavioral responses linked to hallucinations, suggesting therapeutic neuroplasticity might be achievable without the psychedelic state. This paves the way for drugs that enhance brain adaptability for conditions like depression without the associated perceptual disturbances. However, results are currently limited to mice, and the drug’s impact varies depending on prior chronic stress exposure.
more: https://www.sciencedaily.com/releases/2026/11/261104012308.htm
my other side: ivo.blogspot.com
The Event Horizon Telescope network links radio telescopes globally to function as a single earth-sized lens. This technique, called very-long-baseline interferometry, captures the distinct shadow of a supermassive black hole in M87. The image reveals the event horizon's silhouette against surrounding accreting matter.
This provides direct observational evidence for general relativity in extreme gravitational fields. However, the resolution remains limited, and the image is a reconstruction of radio emissions rather than a standard photograph. It confirms theory but does not yet explain the internal dynamics of the singularity.
more: https://www.quantamagazine.org/how-do-you-take-a-picture-of-a-black-hole-20261029/
my other side: ivo.blogspot.com
Researchers measured snowfall in the remote Sierra Nevada and found 270 to 7,500 microplastic particles per square meter. The mechanism is atmospheric scavenging, where falling snowflakes collect airborne fibers and fragments. These plastics originate from clothing wear and industrial activity, traveling far from their source.
This matters because the Sierra snowpack supplies thirty percent of California's freshwater. However, the study did not measure actual health impacts or determine if these particles reach drinking water. The concentrations represent small mass totals, even if the particle counts seem high.
my other side: ivo.blogspot.com
