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E.g., 04/26/2017
E.g., 04/26/2017
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  • toddler napping
  • Scott Jasechko
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Your search has returned 109042 articles:
  • Growth Curve

    Long naps lead to less night sleep for toddlers

    Like most moms and dads, my time in the post-baby throes of sleep deprivation is a hazy memory. But I do remember feeling instant rage upon hearing a popular piece of advice for how to get my little one some shut-eye: “sleep begets sleep.” The rule’s reasoning is unassailable: To get some sleep, my baby just had to get some sleep. Oh. So helpful. Thank you, lady in the post office and entire...

    04/26/2017 - 07:00 Human Development, Health
  • News

    ‘Fossil’ groundwater is not immune to modern-day pollution

    Groundwater that has lingered in Earth’s depths for more than 12,000 years is surprisingly vulnerable to modern pollution from human activities. Once in place, that pollution could stick around for thousands of years, researchers report online April 25 in Nature Geoscience. Scientists previously assumed such deep waters were largely immune to contamination from the surface.

    “We can’t...

    04/25/2017 - 16:12 Sustainability, Pollution, Earth
  • Wild Things

    How a dolphin eats an octopus without dying

    Most people who eat octopus prefer it immobile, cut into pieces and nicely grilled or otherwise cooked. For some, though, the wiggly, sucker-covered arms of a live octopus are a treat — even though those arms can stick to the throat and suffocate the diner if they haven’t been chopped into small enough pieces.

    Dolphins risk the same fate when eating octopus — and they can’t cook it or...

    04/25/2017 - 13:00 Animals
  • News

    Faux womb keeps preemie lambs alive

    Premature babies may one day continue developing in an artificial womb, new work with sheep suggests.

    A fluid-filled bag that mimics the womb kept premature lambs alive and developing normally for four weeks, researchers report April 25 in Nature Communications. Lambs at a gestational age equivalent to that of a 23- or 24-week-old human fetus had normal lung and brain development after a...

    04/25/2017 - 12:30 Biomedicine
  • News

    Homo naledi’s brain shows humanlike features

    NEW ORLEANS — A relatively small brain can pack a big evolutionary punch. Consider Homo naledi, a famously puzzling fossil species in the human genus. Despite having a brain only slightly larger than a chimpanzee’s, H. naledi displays key humanlike neural features, two anthropologists reported April 20 at the annual meeting of the American Association of Physical Anthropologists.

    Those...

    04/25/2017 - 12:08 Human Evolution, Anthropology, Language
  • The –est

    Oldest evidence of patterned silk loom found in China

    An ancient tomb in southern China has provided the oldest known examples, in scaled-down form, of revolutionary weaving machines called pattern looms. Four immobile models of pattern looms illuminate how weavers first produced silk textiles with repeating patterns. The cloths were traded across Eurasia via the Silk Road, Chinese archaeologists report in the April Antiquity. The models, created...

    04/25/2017 - 07:00 Archaeology
  • Rethink

    Beetles have been mooching off insect colonies for millions of years

    Mooching roommates are an ancient problem. Certain species of beetles evolved to live with and leech off social insects such as ants and termites as long ago as the mid-Cretaceous, two new beetle fossils suggest. The finds date the behavior, called social parasitism, to almost 50 million years earlier than previously thought.

    Ants and termites are eusocial — they live in communal groups...

    04/24/2017 - 16:00 Animals, Paleontology
  • News

    No long, twisted tail trails the solar system

    The solar system doesn’t have a long, twisted tail after all.

    Data from the Cassini and Voyager spacecraft show that the bubble of particles surrounding the solar system is spherical, not comet-shaped. Observing a spherical bubble runs counter to 55 years of speculation on the shape of this solar system feature, says Tom Krimigis of the Johns Hopkins Applied Physics Laboratory in Laurel...

    04/24/2017 - 11:00 Astronomy
  • News in Brief

    Gamma-ray evidence for dark matter weakens

    A potential sign of dark matter is looking less convincing in the wake of a new analysis.

    High-energy blips of radiation known as gamma rays seem to be streaming from the center of the Milky Way in excess. Some scientists have proposed that dark matter could be the cause of that overabundance. Particles of dark matter — an invisible and unidentified substance that makes up the bulk of...

    04/24/2017 - 09:00 Physics, Astronomy
  • Science & the Public

    We went to the March for Science in D.C. Here's what happened

    */ [View the story "The March for Science, Washington, D.C." on Storify]
    04/22/2017 - 19:02 Science & Society