Ancient Human Teeth Uncover a Genetic Connection Hidden for 400,000 Years & More

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Ancient Human Teeth Uncover a Genetic Connection Hidden for 400,000 Years   2026-09-06 12:02:43 +00:00 Enamel proteins from Homo erectus teeth suggest genetic links to Denisovans while offering a less destructive way to study ancient human fossils. A handful of ancient teeth may preserve clues to a relationship that has remained difficult to trace through fossils alone. Researchers from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese [...] Read more...   DNA Solves a 166-Year-Old Mystery From the Doomed Franklin Expedition   2026-09-06 10:47:45 +00:00 New research reveals more details about the doomed mission to find the Northwest Passage. Researchers have now identified four additional members of Sir John Franklin’s 1845 expedition, including one sailor whose identity had been debated for more than 100 years. The work was led by anthropologists in the Faculty of Arts at the University of [...] Read more...   Researchers Discover a Gut Microbe Metabolite That Supercharges Cancer Immunotherapy   2026-09-06 02:33:17 +00:00 A microbial metabolite called 3,4 dihydroxybenzoic acid, derived from dietary fiber, improved antitumor immunity in mice. A compound made by gut bacteria during the breakdown of dietary fiber may offer a way to strengthen cancer immunotherapy. In mouse studies, University of Michigan researchers turned that compound into an oral drug that helped T cells attack [...] Read more...   How Often You Exercise May Matter More Than How Hard You Work Out for Mental Health   2026-09-06 01:18:25 +00:00 When it comes to reducing the risk of depression and anxiety, how often students exercise may matter more than how hard they push themselves. A large Norwegian study found that students who exercised infrequently were more likely to develop clinically defined depression, anxiety, or another common mental disorder over the following year. How often they [...] Read more...   NASA’s Curiosity Rover Discovers a Strange “Honeycomb” Landscape on Mars   2026-09-05 21:54:12 +00:00 A strange honeycomb landscape on Mars may preserve the scars of ancient cycles of rain, drought, and cracking mud. The surface of Mars is home to some of the most breathtaking and awe-inspiring landscapes in the solar system. This is primarily due to the Red Planet lacking several resurfacing processes that Earth possesses, including plate [...] Read more...   Mercury Isn’t What Scientists Thought: New Study Reveals a Surprisingly Different Surface   2026-09-05 20:39:03 +00:00 From tiny glass beads and a map of the Moon to Mercury, a new study uses an indirect method to determine the silicon dioxide content of Mercury’s surface. Mercury’s surface appears to contain substantially less silicon dioxide than researchers previously estimated. A new analysis puts the compound at about 37 percent by mass, up to [...] Read more...   A New Human Organ Chip Reveals How Cancer Invades the Body   2026-09-05 16:23:28 +00:00 Cancer’s spread to distant organs can now be studied using lab-grown bone, lung, and blood vessel tissues. Cancer becomes far more dangerous when it stops being confined to one place. Most cancer deaths are not caused by the original tumor, but by cells that break away, travel through the bloodstream, and establish new tumors in [...] Read more...   Scientists Discover Immune Cells Are Eating Living Neurons in ALS   2026-09-05 15:08:12 +00:00 Salk Institute scientists found that immune cells in the central nervous system identify and kill specific nerve cells in the spinal cords of mice with late-stage ALS, worsening the disease. The findings could help inform new approaches to cancer and autoimmune therapies. In amyotrophic lateral sclerosis (ALS), the nerve cells that control movement gradually die, [...] Read more...   These Toads Are Surviving a Deadly Fungus – Scientists May Finally Know Why   2026-09-05 12:01:37 +00:00 Earlier development of diverse antimicrobial peptides may help some toad populations survive devastating chytrid fungus outbreaks. A deadly fungus has devastated frog and toad populations around the world, yet some groups eventually begin to recover even while the pathogen remains. Researchers led by University College London (UCL), ZSL, and Imperial College London have now identified [...] Read more...   These Brain Cells May Explain Why We Eventually Have To Sleep   2026-09-05 10:44:32 +00:00 The longer we stay awake, the more certain brain cells appear to turn up the pressure to sleep, eventually making rest nearly impossible to resist. Sleep drive is the biological pressure to rest that builds during waking hours, making it increasingly difficult to stay alert. After prolonged wakefulness, it typically produces longer, deeper recovery sleep, [...] Read more...   Scientists Discover Hidden Cells That Help Lung Cancer Evade the Immune System   2026-09-05 02:53:51 +00:00 Newly identified CHL1 fibroblasts may help lung cancers escape immune attack by recruiting regulatory T cells around tumors. A previously unknown population of fibroblasts appears to help lung tumors hide from the immune system by drawing suppressive T cells to the edge of the cancer. Columbia University researchers found that these CHL1-expressing cells can create [...] Read more...   Tomatoes Contain an Invisible Ingredient With Surprising Effects on Liver Health   2026-09-05 01:38:46 +00:00 A tomato contains a hidden ingredient that the eye cannot see, and it may be just as important to liver health as the red pigment that made the fruit famous. Researchers at Tufts University found that phytoene, a colorless precursor used by plants to make lycopene, sharply reduced fatty liver disease in mice. The discovery [...] Read more...

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