All articles tagged with #science
New imaging studies reveal that fatherhood dramatically reshapes the brain: as men become dads, neural circuits tied to caregiving, emotion processing, reward, and threat detection reorganize to support bonding and responsive parenting, with changes persisting beyond early fatherhood and potentially influencing behavior and mental health.
The piece revisits Schrödinger’s 1935 cat-in-a-box thought experiment, used to critique interpretations of quantum mechanics by suggesting a system could be in a live-and-dead superposition until observed. It notes Schrödinger’s letter to Einstein and the ongoing debate over whether reality collapses to a definite state at measurement, highlighting the origin and stakes of the quantum measurement problem.
Over 15 years, researchers revisited a 1,288-meter-deep whale fall off Vancouver Island, using centimeter-scale photogrammetry and ROVs to document bone decay. They observed a prolonged sulphophilic stage—driven by bone‑degrading bacteria—that lasted at least 21 years and may stretch another decade, with a shift from early ‘zombie worms’ to diverse sulphophiles such as tube worms and clams; bone shrinkage was measurable, illustrating a slow, complex whale-fall ecosystem. Climate-related expansion of oxygen minimum zones could hinder colonization and reduce biodiversity at future carcasses.
A drilling expedition (IODP-NSF Expedition 501) off Nantucket and Martha’s Vineyard confirmed a massive freshwater reservoir buried beneath the Atlantic seafloor along the U.S. Northeast, extending from New Jersey to Maine. Recovered low-salinity water and a robust impermeable cap suggest the reservoir formed about 20,000 years ago during the last glacial period, and it could theoretically supply New York City with drinking water for around 800 years. While offshore extraction would require new infrastructure and carries environmental uncertainties, the finding implies potential, long-term backup water resources in other coastal regions as well.
A study published in the Proceedings of the Royal Society B analyzed 85 dinosaur species and found that tiny arms in T. rex and other giant carnivores are an evolutionary trade-off for increasingly large skulls; as skull strength rose to deliver more bite power, forelimbs shrank across multiple lineages around the world over roughly 180 million years, though their exact function remains unclear.
A NHMLAC-led team describes Labrujasuchus expectatus, a beaked, toothless, bipedal crocodile-relative from the Late Triassic found at Ghost Ranch, New Mexico. Though its look mirrors dinosaurs, it’s still crocodile-line, illustrating convergent evolution and filling a gap between earlier and later shuvosaurs.
In 2016, a Jordanian couple seeking to spare their child from Leigh syndrome traveled to Mexico for spindle nuclear transfer, resulting in the first live birth using mitochondrial replacement. The baby, a boy, carries nuclear DNA from the parents and donor mitochondrial DNA, a small contribution intended to prevent the disease. The case demonstrated the procedure’s feasibility but sparked ongoing ethical and regulatory debate, including U.S. bans and a fragmented international landscape governing this form of genetic intervention.
Video by diver John Roney from the Salish Sea shows a giant wolf eel—an actual fish that can reach up to eight feet long. Though called eels, wolf eels have pectoral fins behind the head and are not true eels. Adults are gray and rugged, while juveniles appear bright orange with a honeycomb pattern. One observed eel sported a healed mouth wound from an urchin spine, fitting their diet of sea urchins and highlighting the striking size difference between young and adults.
Tardigrades endure boiling, freezing, vacuum, and high radiation by drying into a glass-like tun that halts metabolism. This cryptobiosis is enabled by tardigrade-specific proteins (TDPs) that form a protective amorphous solid and the Dsup protein that shields DNA from radiation. They’ve been revived after years and even sent to space (ISS), with ongoing studies aiming to apply these mechanisms for radioprotection and dry, room-temperature biomedical storage, though translating to humans remains far off.
Fifteen journals rejected Lynn Margulis’s 1966 proposal that all complex life arose from ancient mergers of cells; her eventual 1967 paper On the Origin of Mitosing Cells argued mitochondria and chloroplasts are descended from free-living bacteria absorbed by early cells. The theory gained support as evidence accumulated—mitochondrial DNA resembles bacterial genomes, they reproduce by binary fission, and their ribosomes are bacterial-like—leading to the acceptance of endosymbiosis and, later, recognition of secondary endosymbiosis and extensive horizontal gene transfer. The result is a view of life as a web of cooperative mergers, not a simple tree.
The DAMPE space telescope has directly detected a universal spectral softening at about 15 teravolts across five cosmic-ray species, confirming a rigidity-dependent acceleration framework (the Peters cycle) and ruling out mass-dependent models with over 99.999% confidence, suggesting a nearby Galactic source as the accelerator.
Satellite data from 1997–2025 show a portion of Earth's outer core beneath the Pacific reversed its flow from westward to eastward between 2010 and 2012, strengthening through 2020 before weakening again and accounting for about 5% of the outer-core surface flow. This hints that the deep interior is more dynamic than previously thought and may be linked to later geomagnetic jerks; improving our understanding of the geodynamo helps forecast the magnetic field and space weather.
UC Berkeley researchers found ethanol in the nectar of 26 of 29 plant species, meaning bees and hummingbirds regularly ingest tiny amounts of alcohol as they forage; most levels are trace, with one sample at about 0.056% ethanol. For hummingbirds, this could amount to roughly the equivalent of a human one alcoholic drink per day; experiments show they tolerate modest alcohol but avoid higher concentrations, and feathers contain a metabolite indicating alcohol processing. The findings suggest dietary ethanol is widespread and may subtly affect pollinator behavior, with ongoing studies comparing intake across species.
A six-month randomized trial with 251 adults who had central obesity found no significant cognitive improvements from eating one avocado daily compared to a control group. Memory, processing speed, and executive function showed no meaningful gains, with any minor improvements likely due to practice effects rather than the avocado. Age did not alter the outcome, suggesting that a single nutrient-dense food is not a quick fix for brain health and that effects may depend on weight status or require broader dietary changes.
Researchers analyzing two Ming dynasty iron surgical tools from the Xia Quan tomb in Jiangyin found residue containing aconitine, a highly toxic alkaloid from wolfsbane, detected with Raman spectroscopy and linked to a topical anesthetic prepared for minor surgeries after detoxification (likely with urine, vinegar, or similar substances). This marks the first direct chemical evidence of an anesthetic on ancient surgical instruments in Ming China.