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E.g., 03/25/2017
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  • News

    Ancient Romans may have been cozier with Huns than they let on

    Nomadic warriors and herders known as the Huns are described in historical accounts as having instigated the fifth century fall of the Roman Empire under Attila’s leadership. But the invaders weren’t always so fierce. Sometimes they shared rather than fought with the Romans, new evidence suggests.

    Huns and farmers living around the Roman Empire’s eastern border, where the Danube River...

    03/24/2017 - 11:38 Archaeology, Anthropology
  • News

    Deadly New Zealand quake hopscotched across faults

    A seemingly impossible earthquake that rattled New Zealand last November casts doubt on how well seismologists can forecast quakes involving multiple fault lines.

    Retracing the path of the magnitude 7.8 temblor using satellite and seismic data, researchers discovered that the earthquake involved at least 12 major faults and was far more widespread and powerful than predicted by seismic...

    03/23/2017 - 14:38 Earth
  • News

    Dengue fever spreads in a neighborly way

    Dengue is a bit of a homebody. By mapping the spread of the virus across Bangkok, scientists found that infections were most likely to occur within a few minutes’ walk of the home of the first person infected.

    Pinpointing where dengue is likely to be transmitted can better focus efforts to stop the spread of the disease, the researchers report in the March 24 Science.

    “We often...

    03/23/2017 - 14:00 Health, Immune Science
  • News

    Random mutations play large role in cancer, study finds

    Researchers have identified new enemies in the war on cancer: ones that are already inside cells and that no one can avoid.

    Random mistakes made as stem cells divide are responsible for about two-thirds of the mutations in cancer cells, researchers from Johns Hopkins University report in the March 24 Science. Across all cancer types, environment and lifestyle factors, such as smoking and...

    03/23/2017 - 14:00 Cancer, Cells, Health
  • Science Ticker

    Arctic sea ice hits record wintertime low

    Arctic sea ice has hit a record low for the third year in a row. It’s the paltriest maximum extent seen since recordkeeping began in 1979, scientists at NASA and the National Snow and Ice Data Center announced March 22.

    Total sea ice cover on the Arctic Ocean peaked on March 7, satellite observations show, reaching a total area of 14.42 million square kilometers. That’s around 100,000...

    03/23/2017 - 12:31 Climate, Oceans
  • Soapbox

    It’s time to redefine what qualifies as a planet, scientists propose

    Pluto is a planet. It always has been, and it always will be, says Will Grundy of Lowell Observatory in Flagstaff, Arizona. Now he just has to convince the world of that.

    For centuries, the word planet meant “wanderer” and included the sun, the moon, Mercury, Venus, Mars, Jupiter and Saturn. Eventually the moon and sun were dropped from the definition, but Pluto was included, after its...

    03/23/2017 - 09:00 Planetary Science
  • 50 Years Ago

    In 1967, LSD was briefly labeled a breaker of chromosomes

    LSD may damage chromosomes

    Two New York researchers have found the hallucinogenic drug will markedly increase the rate of abnormal change in chromosomes. [Scientists] tested LSD on cell cultures from the blood of two healthy individuals … [and] also found similar abnormal changes in the blood of a schizophrenic patient who had been treated with [LSD]. The cell cultures showed a two-fold...

    03/23/2017 - 07:00 Genetics, Neuroscience
  • News

    Female guppies with bigger brains pick more attractive guys

    When choosing more attractive guys, girl guppies with larger brains have an advantage over their smaller-brained counterparts. But there’s a cost to such brainpower, and that might help explain one of the persistent mysteries of sex appeal, researchers report March 22 in Science Advances.

    One sex often shows a strong preference for some trait in the other, whether it’s a longer fish fin...

    03/22/2017 - 15:54 Animals, Evolution, Neuroscience
  • News

    Anatomy analysis suggests new dinosaur family tree

    The standard dinosaur family tree may soon be just a relic.

    After examining more than 400 anatomical traits, scientists have proposed a radical reshuffling of the major dinosaur groups. The rewrite, reported in the March 23 Nature, upsets century-old ideas about dinosaur evolution. It lends support to the accepted idea that the earliest dinosaurs were smallish, two-legged creatures. But...

    03/22/2017 - 14:06 Paleontology, Evolution, Animals
  • Growth Curve

    Touches early in life may make a big impact on newborn babies’ brains

    Many babies born early spend extra time in the hospital, receiving the care of dedicated teams of doctors and nurses. For these babies, the hospital is their first home. And early experiences there, from lights to sounds to touches, may influence how babies develop.

    Touches early in life in the NICU, both pleasant and not, may shape how a baby’s brain responds to gentle touches later, a...

    03/22/2017 - 12:30 Human Development, Health