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E.g., 07/22/2018
E.g., 07/22/2018
Your search has returned 3510 images:
  • in vitro fertilization
  • a giant clam
  • Akainacephalus johnsoni illustration
Your search has returned 106275 articles:
  • 50 years ago, scientists took baby steps toward selecting sex

    Toward preselected sex

    Robert Edwards and Richard Gardner of Cambridge University … say they have been able to remove rabbit embryos … then reimplant only the blastocysts destined to develop into the chosen sex. The implications are obvious and enormous. If this procedure could be extended easily to man there might, for instance, be imbalances, even fads, in the selection by parents...

    07/20/2018 - 13:49 Genetics, Technology, Science & Society
  • July 21, 2018

    07/19/2018 - 18:09
  • Introducing

    A new ankylosaur found in Utah had a surprisingly bumpy head

    A newly identified dinosaur’s evolutionary origins are written all over its face.

    Bony knobs studding the head and snout of Akainacephalus johnsoni, a type of armored dinosaur called an ankylosaurid, are similar to those of Asian ankylosaurids. That was a surprise, says Jelle Wiersma, a paleontologist at James Cook University in Townsville, Australia. He and Randall Irmis, a...

    07/19/2018 - 12:30 Animals, Evolution, Paleontology
  • Reviews & Previews

    ‘The Poisoned City’ chronicles Flint’s water crisis

    The Poisoned CityAnna ClarkMetropolitan Books, $30

    America is built on lead. Networks of aging pipes made from the bluish-gray metal bring water into millions of U.S. homes. But when lead, a poison to the nervous system, gets into drinking water — as happened in Flint, Mich. — the heavy metal can cause irreparable harm (SN: 3/19/16, p. 8). In The Poisoned City, journalist Anna Clark...

    07/17/2018 - 07:00 Health, Toxicology, Science & Society
  • Feature

    The brain may clean out Alzheimer’s plaques during sleep

    Neuroscientist Barbara Bendlin studies the brain as Alzheimer’s disease develops. When she goes home, she tries to leave her work in the lab. But one recent research project has crossed into her personal life: She now takes sleep much more seriously.

    Bendlin works at the University of Wisconsin–Madison, home to the Wisconsin Registry for Alzheimer’s Prevention, a study of more than 1,500...

    07/15/2018 - 06:00 Biomedicine, Neuroscience, Mental Health
  • News

    Pregnancy depression is on the rise, a survey suggests

    Today’s young women are more likely to experience depression and anxiety during pregnancy than their mothers were, a generation-spanning survey finds.

    From 1990 to 1992, about 17 percent of young pregnant women in southwest England who participated in the study had signs of depressed mood. But the generation that followed, including these women’s daughters and sons’ partners, fared worse...

    07/13/2018 - 11:00 Neuroscience, Health
  • 50 years ago, neutrinos ghosted scientists

    Tracking the neutrino

    The definite detection of nonterrestrial neutrinos, whether from the sun or from beyond the solar system, will yield a far deeper understanding of stellar interiors and, therefore, of how today’s universe came to be. — Science News, July 20, 1968.

    Update

    In May 1968, researchers reported that a particle detector in South Dakota spotted ghostly subatomic...

    07/12/2018 - 16:47 Particle Physics, Astronomy, Technology
  • News

    The right mix of gut microbes relieves autism symptoms in the long run

    MADISON, Wis. — Giving children with autism a healthier mix of gut bacteria as a way to improve behavioral symptoms continued to work even two years after treatment ended.

    The finding may solidify the connection between tummy troubles and autism, and provide more evidence that the gut microbiome — the collection of bacteria and other microbes that live in the intestines — can influence...

    07/12/2018 - 13:00 Microbiology, Neuroscience
  • News

    A high-energy neutrino has been traced to its galactic birthplace

    A zippy little particle has been traced back to its cosmic stomping grounds, a flaring galaxy 4 billion light-years away, for the first time solving a cosmic whodunit.

    Scientists have long puzzled over the sources of high-energy particles from space, which batter the Earth at energies that can outstrip the world’s most advanced particle accelerators. Now, physicists have identified the...

    07/12/2018 - 11:00 Particle Physics, Astronomy
  • Feature

    The ecosystem that controls a galaxy’s future is coming into focus

    There’s more to a galaxy than meets the eye. Galaxies’ bright stars seem to spiral serenely against the dark backdrop of space. But a more careful look reveals a whole lot of mayhem.

    “Galaxies are just like you and me,” Jessica Werk, an astronomer at the University of Washington in Seattle, said in January at a meeting of the American Astronomical Society. “They live their lives in a...

    07/12/2018 - 07:00 Astronomy, Cosmology