Know the Legal Age to Buy Tobacco Products in the U.S.? Many Parents Don’t
Since 2019, the United States has enforced a federal Tobacco‑21 law that raises the minimum purchase age for cigarettes, vapes, and other nicotine products to 21. A recent Stanford‑led survey of over 2,000 parents found that fewer than half correctly identified this age, compared with 82 % who knew the legal drinking age. Researchers say the knowledge gap underscores the need for targeted public‑health messaging to families.
A Strange ‘Neutrino Force’ Helped Heal a Crack in Particle Physics
Physicists have shown that a previously ignored “neutrino force” – a subtle interaction mediated by paired neutrinos and other fermions – eliminates a long‑standing mismatch between the Standard Model and precision parity‑violation measurements in cesium atoms. By incorporating these fermion‑pair...
A New Measurement Reveals Gravity Is Still Hard to Pin Down
Physicists at NIST have released a new high‑precision measurement of the gravitational constant, reporting G = 6.67387 × 10⁻¹¹ m³ kg⁻¹ s⁻². The value is 0.0235 percent lower than the earlier French torsion‑balance result and moves closer to the value recommended by the International Science Council. The experiment...
This Tree Is Number One for Cloud Forest Mammals Going Number Two
Researchers surveyed 169 cloud‑forest trees in Costa Rica and found 11 arboreal latrines, all in the strangler fig Ficus tuerckheimii. Camera traps recorded 17 mammal species using these canopy toilets, turning the fig into a shared scent‑marking hub. The flat...
Breath Carries Clues to Gut Health
Consumer‑grade breath analyzers such as the Trio‑Smart and FoodMarble AIRE now let users sample exhaled gases at home, promising insights into gut health. While clinicians rely on standardized breath tests—measuring hydrogen and methane after a sugar solution—to diagnose conditions like...
New Mutations Help the H5N1 Bird Flu Virus Infect Cows but Not People
Researchers have identified two mutations in H5N1 bird‑flu viruses that allow them to bind the cattle‑specific sugar N‑glycolylneuraminic acid (NeuGc). This adaptation improves infection of mammary tissue and facilitates airborne spread among dairy cattle. Laboratory tests show the mutations do...
Fluoride in U.S. Drinking Water Does Not Reduce IQ, a New Study Finds
A new longitudinal analysis of more than 10,000 Wisconsin residents followed since 1957 finds no association between community water fluoridation at the U.S. guideline of 0.7 mg/L and lower adolescent IQ or later‑life cognitive performance. The study, published in the Proceedings...
Talking Dogs and Chatty Cats Could One Day ‘Speak’ in Our Language
Scientists are closing the gap between animal vocalizations and human language thanks to rapid advances in artificial intelligence, acoustic recording, and neurogenetics. Only about 1% of vertebrate species are true vocal learners, but breakthroughs such as decoding a humpback whale...
For Gray Whales, San Francisco Bay Is Becoming a Deadly Pit Stop
Researchers analyzing 100,000 photos from 2018‑2025 found that 18% of gray whales entering San Francisco Bay die there, with vessel strikes responsible for half of documented deaths. The study, published in Frontiers in Marine Science, links the trend to declining Arctic...
Seeing and Imagining Activate some of the Same Brain Cells
Researchers at Cedars‑Sinai recorded activity from over 700 neurons in the ventral temporal cortex of 16 epilepsy patients and found that imagining an object reactivates about 40% of the same neurons used during visual perception. The study, published in Science,...
Emperor Penguins Are Marching Toward Extinction. Antarctica Fur Seals Too
On April 9, 2026 the IUCN upgraded the emperor penguin from threatened to endangered, citing rapid sea‑ice loss that jeopardizes breeding. Satellite imagery in 2022 revealed the collapse of five colonies, killing roughly 10,000 chicks, and the overall adult population has...
Hawaii Is Turning Ocean Plastic Into Roads to Fight Pollution
Hawaii’s Center for Marine Debris Research has begun converting ocean‑collected plastic into asphalt, creating the nation’s first road‑paving program that uses marine debris. About 90 metric tons of waste—including over a ton of fishing nets—have been shredded and mixed with hot‑mix...
Mummified Reptile Hints at the Origins of How We Breathe
Scientists have uncovered two mummified specimens of the early reptile Captorhinus, dating 289‑286 million years old, preserved in oil‑rich cave sediments. The fossils retain rib cages, cartilage, and even protein fragments, allowing researchers to reconstruct a fully functional chest‑muscle breathing system. Using...
The ‘Oldest Fossil Octopus’ Is Probably Another Animal
New research published in Proceedings of the Royal Society B reclassifies the 310‑million‑year‑old fossil *Pohlsepia mazonensis* as a nautilus rather than the previously assumed oldest octopus. Using high‑powered X‑ray chemical imaging, scientists identified a radula with at least 11 teeth,...
A New Book Finds Parenting Inspiration in the Animal Kingdom
Elizabeth Preston’s new book, *The Creatures’ Guide to Caring* (Viking, $30), uses animal parenting examples to illuminate human child‑rearing. The author blends humor with scientific research, from beetles that regurgitate food to fish fathers that release oxytocin, showing how caregiving...
Human Echolocation Works Step by Step
Human echolocation, using tongue clicks and echo perception, has been shown to rely on incremental processing rather than a single auditory snapshot. Researchers recorded EEG from blind expert echolocators and sighted novices as they heard varying numbers of click‑echo pairs,...
Artemis II: NASA’s Orion Heads Home After a Historic Loop Around the Moon
NASA’s Artemis II Orion spacecraft completed a historic five‑day lunar flyby, looping around the Moon’s far side on April 6. The crew witnessed the first human‑viewed total solar eclipse from lunar orbit and captured unprecedented visual detail of the far‑side terrain. A...
Snippets of Hair May Expose Chronic Stress in War Refugees
A study of roughly 300 Ukrainian women and children displaced to Poland found that hair cortisol levels more accurately reflect chronic stress than standard questionnaires. Direct exposure to combat raised hair cortisol by about 46% compared with indirect exposure, a...
When Our Minds Wander to the Body, It May Affect Mental Health
Researchers identified a distinct form of mind wandering called "body wandering," where thoughts drift toward internal sensations such as heartbeat or breath. In an MRI study of 536 participants, body wandering showed a unique neural signature separate from traditional cognitive...
To Climb Trees, Cicadas Look to the Shadows
Periodical cicada nymphs emerging from 17‑year underground burrows use a shadow‑seeking behavior called skototaxis to locate tree trunks for molting. Researchers studying Brood XIII observed that the insects move in near‑straight lines toward dark silhouettes, deviating minimally from the optimal path....
Digital Heart Twins Can Guide a Lifesaving Procedure
Researchers at Johns Hopkins created patient‑specific digital heart twins that simulate electrical activity to plan ventricular tachycardia ablations. By converting high‑resolution MRI scans into 3‑D models, physicians could test virtual ablations and identify optimal targets before entering the operating room....
A Fossil Reveals Early Relatives of Spiders — Armed with Claws
Scientists have described a remarkably preserved fossil from Utah’s Wheeler Formation that dates to roughly 500 million years ago, representing the oldest clear example of chelicerae—front claws—found in early spider and scorpion relatives. The specimen’s well‑developed claws settle a long‑standing debate...
Quantum Physics Can Confirm Where Someone Is Located
Scientists at NIST demonstrated quantum position verification, using entangled photons to prove a prover’s physical location over a 200‑meter baseline. The protocol involves two verifier stations sending random numbers and entangled particles to the prover, whose measurement results are compared...
How Snakes Defy Gravity to Stand Tall
Researchers observed that tree‑climbing snakes, such as scrub pythons and brown tree snakes, adopt an S‑shaped posture with most curvature at the base when moving between perches. Mathematical modeling shows that concentrating bending energy near the perch and coordinating muscle...
A Rare Star in a Tiny Galaxy Preserves a Record of the Early Universe
Astronomers have identified PicII‑503, an ultra‑metal‑poor star in the ultrafaint dwarf galaxy Pictor II, marking the first unequivocal second‑generation star found outside the Milky Way. The star’s iron content is less than one‑fortieth‑thousandth that of the Sun, while its carbon abundance...
Early Apes May Not Have Evolved in East Africa
Scientists have identified a new 17‑million‑year‑old ape species, Masripithecus moghraensis, from a lower‑jaw fossil uncovered in northern Egypt. The find extends the geographic range of early ape fossils beyond the traditional East African record and suggests that the lineage leading...
When Were Dogs Domesticated? The Oldest Known Dog DNA Offers Clues
Two new studies published in Nature reveal that dogs were domesticated in Europe by at least 14,200 years ago, pushing the confirmed split from wolves back over 3,000 years. Researchers analyzed ancient DNA from more than 200 dog and wolf...
A Private Moon Lander Challenges Ideas About Lunar Volcanism
Firefly Aerospace’s Blue Ghost lander has delivered the first private‑sector heat‑flow measurements from the Moon’s nearside, finding subsurface temperatures at Mare Crisium that are nearly identical to those recorded by Apollo 12, 15 and 17. The data contradict the long‑standing hypothesis that the Procellarum...
Clumps of Mouse Brain Cells Can Learn to Play a Virtual Game
Researchers trained mouse brain organoids—tiny clumps the size of peppercorns—to solve the classic cart‑pole video‑game challenge using reinforcement learning. By delivering targeted electrical feedback, the organoids balanced the virtual pole for at least 20 seconds in roughly half of the...
These Insects Fly with Their Legs. Physics Explains How
Researchers at UC Berkeley demonstrated that the Eastern phantom crane fly can remain airborne by splaying its six legs into a drag‑producing cone, effectively “flying” without wing motion in an updraft. High‑speed camera and wind‑tunnel tests showed the leg cone...
In a Rare Event, the Moon Got a Massive New Crater
A fresh lunar crater 225 meters wide was identified by NASA’s Lunar Reconnaissance Orbiter, forming in April‑May 2024. Researchers estimate an impact of this size should occur only once every 139 years, making it a once‑in‑a‑century event. The crater sits on...
Female Giant Rainforest Mantises Grow up to Strike Harder than Males
Researchers at Kiel University measured the predatory strike force of the Australian giant rainforest mantis from early nymph stages to adulthood, revealing that adult females deliver about 196 mN—roughly three times the force of males and far exceeding predictions based on...
Long Nails Don’t Work on Touchscreens. An Experimental Polish Could Help
Researchers at the American Chemical Society meeting unveiled an experimental nail polish that can trigger capacitive touchscreens. By adding ethanolamine or taurine to a clear polish, the coating disrupts the screen’s electric field, allowing a fingernail to register as a...
Check Out 6 Ways Orchids Use Tricks to Reproduce
Orchids have evolved a suite of deceptive pollination tricks, ranging from sexual mimicry to foul‑smelling lures, to attract insects without offering rewards. The U.S. Botanic Garden highlighted six species—Lepanthes, Phragmipedium pearcei, Bulbophyllum picturatum, Coelogyne cristata, Spathoglottis kimballiana, and Angraecum comorense—each...
Mosquitoes Get the ‘I’m Full’ Signal From Their Butts, Not Their Brains
Researchers have identified specialized cells in the rectum of Aedes aegypti mosquitoes that signal fullness and halt blood‑feeding. The cells express the neuropeptide‑Y‑like receptor 7, which responds to the gut‑released peptide RYamide after a blood meal. This gut‑based satiety mechanism contrasts...
GLP-1 Microdosers Are Chasing Longevity
A recent Evidation survey shows roughly one in seven U.S. adults on GLP‑1 drugs are microdosing, often to curb costs or chase longevity benefits without full‑dose side effects. Clinics like AgelessRx now market low‑dose regimens, while some physicians prescribe them...
A New Study Questions when People First Reached South America
A new study led by Todd Surovell argues Monte Verde in Chile was occupied only 4,200‑8,200 years ago, far younger than the previously accepted 14,500‑year date that supported a pre‑Clovis presence in South America. The researchers base their claim on...
Earth’s Continental Plates Were Moving 3.48 Billion Years Ago
Researchers analyzing magnetite crystals in Western Australia’s Pilbara region have identified definitive plate movement dating back 3.48 billion years. The rocks show a 2,500‑kilometer poleward drift over a few million years, moving at roughly 47 cm per year—about six times faster than...
A Static Electricity Mystery Comes to the Surface
Scientists have discovered that a thin carbon‑rich film on silica surfaces governs how identical insulating particles exchange static charge. Using acoustic levitation, they showed that heating or plasma treatment removes this layer, flipping the charge polarity between a silica sphere...
To Make a ‘Snowball Earth,’ Sci-Fi Moves Fast. Geology Is Far Slower
Science fiction often dramatizes rapid global cooling, but real-world Snowball Earth events unfolded over millions of years. The Cryogenian period’s ice ages resulted from tectonic breakup, reduced CO₂, and albedo feedback, processes that operate on geological timescales. Modern concerns such...
Sharks Are Ingesting Drugs in the Bahamas
Sharks off Eleuthera Island in the Bahamas were found with a range of human‑derived drugs, including caffeine, acetaminophen, diclofenac and cocaine, after blood samples from 85 individuals were analyzed. Twenty‑eight sharks across three species tested positive, indicating recent exposure. Researchers...
Platypus Fur Has a Surprising Feature Seen only in Bird Feathers
Researchers discovered that platypus fur contains hollow, spherical melanosomes, a structure previously thought exclusive to bird feathers. Electron microscopy of 12 platypus specimens confirmed the hollow melanosomes, which were absent in 126 other mammal species including echidnas and marsupials. Chemical...
City Skylines Influence Cloud Formation Above Them
Researchers analyzing NASA nighttime satellite data found that 44 major U.S. cities exhibit higher cloud cover than surrounding rural areas, with increases ranging from under 1% to about 15%. The study linked these differences to urban design, showing that taller...
Are Pig Organs the Future of Transplantation?
The United States faces a transplant shortage of over 100,000 patients, prompting research into xenotransplantation using genetically engineered pig organs. Recent cases—David Bennett’s pig heart in 2022, Lawrence Faucette’s in 2023, and Tim Andrews’ pig kidney in 2025—demonstrate feasibility, with...
Smartwatch Data Can Be Used to Assess Early Diabetes Risk
Researchers at Google used AI to analyze smartwatch data from 1,165 users, combining heart‑rate, sleep and activity metrics with routine lab results to detect insulin resistance. The model identified the condition with 76% accuracy using only clinical data, rising to...
A Newfound Blood Biomarker May One Day Predict Longevity
Researchers identified six circulating piwi‑interacting RNAs (piRNAs) that forecast two‑year survival in adults over 71 with up to 86% accuracy, surpassing conventional metrics such as age, cholesterol, and activity levels. The study of 1,200 participants linked lower piRNA concentrations to...
Why We Fail to Notice Climate Change
Lake Champlain in northern Vermont, once frozen almost every winter, now freezes only sporadically, reflecting the region’s rapid warming. A July 2025 study in *Nature Human Behaviour* found that presenting climate data as binary (freeze vs. no‑freeze) makes people perceive change...
A Large Fossil Leg Bone Hints at T. Rex’s Origins, but Scientists Disagree
A 96‑centimetre tibia from New Mexico's Kirtland Formation has been re‑examined and identified as a massive tyrannosaurid, potentially predating the classic T. rex by several million years. The bone’s dimensions imply a 4.5‑tonne animal, larger than earlier North American tyrannosaurids but...
Why African Striped Mice Can Be the Best of Dads — or the Worst
Researchers discovered that the Agouti gene acts as a molecular switch governing paternal behavior in African striped mice. Males housed together displayed aggression toward pups, while solitary males became attentive fathers, a shift linked to reduced Agouti activity in the...
AI May Be Giving Teens Bad Nutrition Advice
Researchers evaluated three‑day meal plans generated by five leading AI chatbots for fictional overweight and obese 15‑year‑olds. The AI‑created menus were on average 695 calories lower per day than dietitian‑designed plans and featured insufficient carbohydrates with excess protein and fat....