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environmental-oxygen-triggers-loss-of-webbed-digits

Environmental oxygen triggers loss of webbed digits

African clawed frog (stock image). Credit: © Nathan / Adobe Stock Free fingers have many obvious advantages on land, such as in locomotion and grasping, while webbed fingers are typical of aquatic or gliding animals. But both amphibians and amniotes -- which include mammals, reptiles, and birds -- can have webbed digits. In new research…

The enigma of Bronze Age tin

Illustration of Bronze Age jewelry and vessels (stock image). Credit: © Juulijs / Adobe Stock The origin of the tin used in the Bronze Age has long been one of the greatest enigmas in archaeological research. Now researchers from Heidelberg University and the Curt Engelhorn Centre for Archaeometry in Mannheim have solved part of the…
shorter-people-are-at-higher-risk-of-type-2-diabetes,-study-shows

Shorter people are at higher risk of type 2 diabetes, study shows

Type 2 diabetes medical concept (stock image). Credit: © adiruch na chiangmai / Adobe Stock Short stature is associated with a higher risk of type 2 diabetes, according to a new study in Diabetologia (the journal of the European Association for the Study of Diabetes).Tall stature is associated with a lower risk, with each 10cm…
extinction-of-icelandic-walrus-coincides-with-norse-settlement

Extinction of Icelandic walrus coincides with Norse settlement

Modern-day walrus (stock image). Credit: © Chris / Adobe Stock An international collaboration of scientists in Iceland, Denmark and the Netherlands has for the first time used ancient DNA analyses and C14-dating to demonstrate the past existence of a unique population of Icelandic walrus that went extinct shortly after Norse settlement some 1100 years ago.…
transplanted-brain-stem-cells-survive-without-anti-rejection-drugs-in-mice

Transplanted brain stem cells survive without anti-rejection drugs in mice

Neurons illustration (stock image). Credit: © peterschreiber.media / Adobe Stock In experiments in mice, Johns Hopkins Medicine researchers say they have developed a way to successfully transplant certain protective brain cells without the need for lifelong anti-rejection drugs. A report on the research, published Sept. 16 in the journal Brain, details the new approach, which…
carp-aquaculture-in-neolithic-china-dating-back-8,000-years

Carp aquaculture in Neolithic China dating back 8,000 years

Carp (stock image). Credit: © thornchai / Adobe Stock In a recent study, an international team of researchers analyzed fish bones excavated from the Early Neolithic Jiahu site in Henan Province, China. By comparing the body-length distributions and species-composition ratios of the bones with findings from East Asian sites with present aquaculture, the researchers provide…
elaborate-komodo-dragon-armor-defends-against-other-dragons

Elaborate Komodo dragon armor defends against other dragons

Komodo dragon (stock image). Credit: © Anna Kucherova / Adobe Stock Just beneath their scales, Komodo dragons wear a suit of armor made of tiny bones. These bones cover the dragons from head to tail, creating a "chain mail" that protects the giant predators. However, the armor raises a question: What does the world's largest…
slower-growth-in-working-memory-linked-to-teen-driving-crashes

Slower growth in working memory linked to teen driving crashes

Car after accident (stock image). Credit: © Halfpoint / Adobe Stock Research into why adolescent drivers are involved in motor vehicle crashes, the leading cause of injury and death among 16- to 19-year-olds in the United States, has often focused on driving experience and skills. But a new study suggests that development of the adolescent…
antibiotic-resistance-surges-in-dolphins,-mirroring-humans

Antibiotic resistance surges in dolphins, mirroring humans

Dolphin swimming. Credit: Copyright Michele Hogan Antibiotic resistance is one of the biggest public health challenges in the world today since many common bacterial infections are developing resistance to the drugs once used to treat them, and new antibiotics aren't being developed fast enough to combat the problem. Once primarily confined to health care settings,…
newly-discovered-comet-is-likely-interstellar-visitor

Newly discovered comet is likely interstellar visitor

Comet C/2019 Q4 as imaged by the Canada-France-Hawaii Telescope on Hawaii's Big Island on Sept. 10, 2019. Credit: Canada-France-Hawaii Telescope A newly discovered comet has excited the astronomical community this week because it appears to have originated from outside the solar system. The object -- designated C/2019 Q4 (Borisov) -- was discovered on Aug. 30,…
saturn’s-rings-shine-in-hubble’s-latest-portrait

Saturn’s rings shine in Hubble’s latest portrait

The latest view of Saturn from NASA's Hubble Space Telescope captures exquisite details of the ring system -- which looks like a phonograph record with grooves that represent detailed structure within the rings -- and atmospheric details that once could only be captured by spacecraft visiting the distant world. Hubble's Wide Field Camera 3 observed…
towering-balloon-like-features-discovered-near-center-of-milky-way

Towering balloon-like features discovered near center of Milky Way

Milky Way (stock image). Credit: © Ivan Kurmyshov / Adobe Stock Published in Nature today, scientists have shown how this hourglass-like feature, which dwarfs all other radio structures in the Galactic Centre, is likely the result of a phenomenally energetic burst that erupted near the Milky Way's supermassive black hole a few million years ago.…
fda-phase-1-trial-shows-hydrogel-to-repair-heart-is-safe-to-inject-in-humans-—-a-first

FDA phase 1 trial shows hydrogel to repair heart is safe to inject in...

Heart attack (stock image). Credit: © peterschreiber.media / Adobe Stock Ventrix, a University of California San Diego spin-off company, has successfully conducted a first-in-human, FDA-approved Phase 1 clinical trial of an injectable hydrogel that aims to repair damage and restore cardiac function in heart failure patients who previously suffered a heart attack. The trial is…
solving-the-longstanding-mystery-of-how-friction-leads-to-static-electricity

Solving the longstanding mystery of how friction leads to static electricity

Static hair (stock image). Credit: © Voyagerix / Adobe Stock Most people have experienced the hair-raising effect of rubbing a balloon on their head or the subtle spark caused by dragging socked feet across the carpet. Although these experiences are common, a detailed understanding of how they occur has eluded scientists for more than 2,500…
water-detected-on-an-exoplanet-located-in-its-star’s-habitable-zone

Water detected on an exoplanet located in its star’s habitable zone

Exoplanet illustration (stock image; elements furnished by NASA). Credit: © sdecoret / Adobe Stock Ever since the discovery of the first exoplanet in the 1990s, astronomers have made steady progress towards finding and probing planets located in the habitable zone of their stars, where conditions can lead to the formation of liquid water and the…

FDA phase 1 trial shows hydrogel to repair heart is safe to inject in...

Heart attack (stock image). Credit: © peterschreiber.media / Adobe Stock Ventrix, a University of California San Diego spin-off company, has successfully conducted a first-in-human, FDA-approved Phase 1 clinical trial of an injectable hydrogel that aims to repair damage and restore cardiac function in heart failure patients who previously suffered a heart attack. The trial is…
how-the-eyes-might-be-windows-to-the-risk-of-alzheimer’s-disease

How the eyes might be windows to the risk of Alzheimer’s disease

Closeup of senior woman's eye (stock image). Credit: © Syda Productions / Adobe Stock Alzheimer's disease (AD) begins to alter and damage the brain years -- even decades -- before symptoms appear, making early identification of AD risk paramount to slowing its progression. In a new study published online in the September 9, 2019 issue…
lakes-on-saturn’s-moon-titan-are-explosion-craters,-new-models-suggest

Lakes on Saturn’s moon Titan are explosion craters, new models suggest

This artist's concept of a lake at the north pole of Saturn's moon Titan illustrates raised rims and rampartlike features such as those seen by NASA's Cassini spacecraft around the moon's Winnipeg Lacus. Credit: NASA/JPL-Caltech Using radar data from NASA's Cassini spacecraft, recently published research presents a new scenario to explain why some methane-filled lakes…
why-people-gain-weight-as-they-get-older

Why people gain weight as they get older

Older man's belly (stock image). Credit: © Mladen / Adobe Stock Many people struggle to keep their weight in check as they get older. Now new research at Karolinska Institutet in Sweden has uncovered why that is: Lipid turnover in the fat tissue decreases during ageing and makes it easier to gain weight, even if…
are-black-holes-made-of-dark-energy?

Are black holes made of dark energy?

Black hole illustration (stock image). Credit: © Stanislaw Blachowicz / Adobe Stock Two University of Hawaii at Manoa researchers have identified and corrected a subtle error that was made when applying Einstein's equations to model the growth of the universe. Physicists usually assume that a cosmologically large system, such as the universe, is insensitive to…

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