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E.g., 09/30/2016
E.g., 09/30/2016
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  • Growth Curve

    Don’t cocoon a kid who has a concussion

    Concussions, particularly those among children playing sports, are on parents’ minds. The fervor over NFL players’ brains and those of other elite athletes has trickled all the way down to mini-kicker soccer teams and peewee football leagues. And parents are right to be worried. Concussions seem to be on the rise. From 1990 to 2014, the rate of concussions in youth soccer players jumped by...

    09/29/2016 - 15:00 Health
  • News

    Primitive signs of emotions spotted in sugar-buzzed bumblebees

    To human observers, bumblebees sipping nectar from flowers appear cheerful. It turns out that the insects may actually enjoy their work. A new study suggests that bees experience a “happy” buzz after receiving a sugary snack, although it’s probably not the same joy that humans experience chomping on a candy bar.

    Scientists can’t ask bees or other animals how they feel. Instead,...

    09/29/2016 - 14:00 Animals, Neuroscience
  • Science Ticker

    Zika virus infects cells that make bone, muscle in lab tests

    Zika virus can infiltrate the cells that give rise to bone, cartilage and muscles in the head, researchers report September 29 in Cell Host & Microbe.

    In utero infection of these cells, called cranial neural crest cells, could improperly mold babies’ facial features, the authors suggest. The findings — so far observed only in cells and minibrains grown in the lab — offer a possible...

    09/29/2016 - 12:00 Health
  • News

    Gene linked to autism in people may influence dog sociability

    Dogs may look to humans for help in solving impossible tasks thanks to some genes previously linked to social disorders in people.

    Beagles with particular variants in a gene associated with autism were more likely to sidle up to and make physical contact with a human stranger, researchers report September 29 in Scientific Reports.

    That gene, SEZ6L, is one of five genes in a...

    09/29/2016 - 09:00 Genetics, Animals
  • News

    So long, Rosetta: End is near for comet orbiter

    Rosetta is about to take its final bow.

    On September 30, the comet orbiter will wrap up its nearly 26-month visit to comet 67P/Churyumov-Gerasimenko by touching down on the surface and then shutting down. Before sending its last signal to Earth, Rosetta will snap pictures and gather data all the way to the end, collecting some of the most detailed looks ever at a comet.

    “Every time...

    09/29/2016 - 05:30 Planetary Science
  • News

    Glass bits, charcoal hint at 56-million-year-old space rock impact

    DENVER — A period of skyrocketing global temperatures started with a bang, new research suggests.

    Impact debris and evidence of widespread wildfires around eastern North America suggest that a large space rock whacked Earth around 56 million years ago at the beginning of the Paleocene-Eocene Thermal Maximum, also known as the PETM, a period of rapid warming and huge increases in carbon...

    09/28/2016 - 17:31 Earth, Climate
  • News

    Concern expands over Zika birth defects

    After a year caring for patients at the heart of Brazil’s Zika epidemic, pediatric neurologist Vanessa van der Linden has seen some of the worst cases.

    She was one of the first researchers to link Zika virus to microcephaly, a now well-known birth defect marked by a small, misshapen head and, sometimes, a forehead that slopes backward. Babies with the defect can have other symptoms, too...

    09/28/2016 - 16:39 Health
  • News

    Ancient microbe fossils show earliest evidence of shell making

    DENVER — Life on Earth got into the shell game more than 200 million years earlier than previously thought.

    Fossilized eukaryotes — complex life-forms that include animals and plants — discovered in Canada are decked out in armorlike layers of mineral plates, paleobiologist Phoebe Cohen said September 27 at the Geological Society of America’s annual meeting. At about 809 million years...

    09/28/2016 - 14:37 Paleontology, Evolution, Microbes
  • Science Ticker

    Solar system sits within a major spiral arm of the Milky Way

    Our local galactic neighborhood might be more expansive than previously thought. Rather than being stuck in some backwater galactic community, our solar system lives along a major spiral arm of the Milky Way, researchers report online September 28 in Science Advances.

    Astronomers suspected that our arm of the Milky Way — the Orion Arm — was just a bridge connecting two bands of stars and...

    09/28/2016 - 14:00 Astronomy
  • News

    New case emerging for Culex mosquito as unexpected Zika spreader

    ORLANDO, Fla. — New evidence from separate labs supports the controversial idea that an overlooked and unexpected Culex mosquito might spread Zika virus.

    The southern house mosquito, Culex quinquefasciatus, is common in the Americas. Constância Ayres, working with Brazil’s Oswaldo Cruz Foundation in Recife, previously surprised Zika researchers with the disturbing proposal that this...

    09/28/2016 - 11:49 Animals, Biomedicine