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Your search has returned 63 articles:
  • Science Visualized

    Bony head ornaments signal some supersized dinosaurs

    Dinosaur fashion, like that of humans, is subject to interpretation. Bony cranial crests, horns or bumps may have served to woo mates or help members of the same species identify one another. While the exact purpose of this skull decor is debated, the standout structures tended to come with an even more conspicuous trait: bigger bodies.

    Terry Gates, a paleontologist at North Carolina...

    01/25/2017 - 13:46 Paleontology, Evolution
  • News

    Restless sleep associated with heart rhythm problems

    NEW ORLEANS — Chronic sleep problems are associated with atrial fibrillation — a temporary but dangerous disruption of heart rhythm — even among people who don’t suffer from sleep apnea. An analysis of almost 14 million patient records has found that people suffering from insomnia, frequent waking and other sleep issues are more likely than sound sleepers to experience a condition in which the...

    11/15/2016 - 17:00 Health
  • Feature

    Fish escapes from marine farms raise concerns about wildlife

    On the dock in Buenaventura, Colombia, the fisherman needed help identifying his catch. “I don’t have any clue what this is,” he said, holding a roughly 50-centimeter-long, grayish-brown fish. Gustavo Castellanos-Galindo, a fish ecologist, recalls the conversation from last October. “I said, ‘Well, this is a cobia, and it shouldn’t be here.’ ”

    The juvenile cobia had probably escaped from...

    09/07/2016 - 16:12 Oceans, Ecosystems, Agriculture
  • Science Ticker

    Genes help snub-nosed monkeys live the high life

    A few genes may have put black snub-nosed monkeys on top of the world.

    Black, or Yunnan, snub-nosed monkeys (Rhinopithecus bieti) live in high-altitude forests on a small slice of the Tibetan plateau. At 3,400 to 4,600 meters above sea level, the monkeys reside at higher elevations than any other nonhuman primate.

    A genetic study of DNA from four of the five remaining species of...

    08/25/2016 - 12:30 Genetics, Animals
  • Feature

    New desalination tech could help quench global thirst

    The world is on the verge of a water crisis.

    Rainfall shifts caused by climate change plus the escalating water demands of a growing world population threaten society’s ability to meet its mounting needs. By 2025, the United Nations predicts, 2.4 billion people will live in regions of intense water scarcity, which may force as many as 700 million people from their homes in search of...

    08/09/2016 - 16:00 Sustainability, Agriculture, Materials
  • Science Ticker

    Five things to know about Zika

    The mysteries of the Zika virus are slowly but surely succumbing to the scientific method. Last week, scientists revealed the virus’ structure, gleaned further insight into its ties to the birth defect microcephaly and found out just how little some people seem to know about Zika. Public health researchers at Harvard University released the results of a poll related to Zika awareness on March...

    04/03/2016 - 08:00 Health, Science & Society
  • The –est

    Earth’s hurricanes have nothing on this quasar

    When visiting the center of a galaxy nicknamed J0230, pack a sturdy windproof jacket. There, you will encounter a galactic hurricane with winds whipping at about 200 million kilometers per hour. At that speed, nearly 20 percent of the speed of light, a trip around Earth would take just 0.7 seconds. These are the fastest known winds around a quasar, a blazing disk of detritus around a...

    03/29/2016 - 15:02 Astronomy
  • Feature

    Special Report: Here's what we know about Zika

    View interactive map

    A stealth virus, most often borne on the wings of a ubiquitous predator, is spreading across the Americas. Zika virus is the latest of several that are carried by mosquitoes. But Zika isn’t a new foe. Discovered in Uganda in 1947 in a rhesus monkey (during an infectious-disease study), the virus was found in humans a decade later in Nigeria.

    Special report:...

    03/18/2016 - 15:40 Health, Science & Society
  • Feature

    GMOs haven’t delivered on their promises — or risks

    Arriving home after work a few summers ago, agricultural economist Matin Qaim found several disturbing messages on his home phone. A study by Qaim had shown that small-scale farmers in India who grew genetically modified cotton had larger harvests compared with conventional cotton growers. Those better yields resulted in greater profits for the mostly poor farmers and more disposable income to...

    01/29/2016 - 12:00 Genetics, Agriculture, Science & Society
  • Feature

    Year in review: Breakthrough gene editor sparks ethics debate

    A revolutionary gene-editing technology made headlines this year as much for the ethical and societal issues it raised as for the scientific accomplishments it enabled.

    CRISPR (pronounced crisper) burst on the scientific scene in 2012, when researchers transformed what had originally been identified as a rudimentary immune system in bacteria into one of the most powerful tools in...

    12/15/2015 - 07:04 Genetics, Science & Society