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E.g., 10/23/2017
E.g., 10/23/2017
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Your search has returned 581 articles:
  • Feature

    Being a vampire can be brutal. Here’s how bloodsuckers get by.

    Jennifer Zaspel can’t explain why she stuck her thumb in the vial with the moth. Just an after-dark, out-in-the-woods zing of curiosity.

    She was catching moths on a July night in the Russian Far East and had just eased a Calyptra, with brownish forewings like a dried leaf, into a plastic collecting vial. Of the 17 or so largely tropical Calyptra species, eight were known vampires. Males...

    10/18/2017 - 12:00 Animals, Physiology
  • Feature

    Birth control research is moving beyond the pill

    Mention “the pill,” and only one kind of drug comes to mind. The claim that oral contraceptives have on that simple noun testifies to the pill’s singular effect in the United States. Introduced in 1960, the pill gave women reliable access to birth control for the first time. The opportunity to delay having children opened the door to higher education and professional careers for many women....

    08/22/2017 - 12:30 Health, Human Development
  • Feature

    Ticks are here to stay. But scientists are finding ways to outsmart them

    Thanks, Holly Gaff. Soon, anyone straining to tweeze off a mid-back tick can find answers to the obvious question: What if humankind just went after the little bloodsuckers with killer robots?

    Gaff, who calls herself a mathematical eco­epidemiologist, at Old Dominion University in Norfolk, Va., is one of the few people collecting real field data on the efficacy of tick-slaying robots....

    08/09/2017 - 11:00 Animals, Science & Society
  • News

    Bones make hormones that communicate with the brain and other organs

    Long typecast as the strong silent type, bones are speaking up.

    In addition to providing structural support, the skeleton is a versatile conversationalist. Bones make hormones that chat with other organs and tissues, including the brain, kidneys and pancreas, experiments in mice have shown.

    “The bone, which was considered a dead organ, has really become a gland almost,” says Beate...

    06/21/2017 - 15:00 Health, Biomedicine, Cells
  • Feature

    Chaco Canyon’s ancient civilization continues to puzzle

    Chaco Canyon is a land of extremes. Summer heat scorches the desert canyon, which is sandwiched between sandstone cliffs nearly two kilometers above sea level in New Mexico’s northwestern corner. Bitter cold sweeps in for winter. Temperatures can swing as many as 28 degrees Celsius during the course of a day. Through it all, Chaco Canyon maintains a desolate beauty and a craggy pride as home...

    05/17/2017 - 07:00 Archaeology, Anthropology
  • Feature

    Yes, statins protect hearts. But critics question their expanding use

    Cholesterol is so important to life that practically every human cell makes it. Cells use the compound to keep their membranes porous and springy, and to produce hormones and other vital substances. The body can make all the cholesterol it needs, but Americans tend to have a surplus, thanks in large part to too little exercise and too much meat, cheese and grease. Fifty years ago, researchers...

    05/03/2017 - 07:00 Health, Biomedicine
  • It's Alive

    Meat-eating pitcher plants raise deathtraps to an art

    Tricking some bug into drowning takes finesse, especially for a hungry meat eater with no brain, eyes or moving parts. Yet California pitcher plants are very good at it.

    Growing where deposits of the mineral serpentine would kill most other plants, Darlingtonia californica survives in low-nutrient soil by being “very meat dependent,” says David Armitage of the University of Notre Dame in...

    01/06/2017 - 07:00 Plants, Ecology, Evolution
  • Feature

    Year in review: Sea ice loss will shake up ecosystems

    In a better world, it would be the big news of the year just to report that Arctic sea ice shrank to 4.14 million square kilometers this summer, well below the 1981–2010 average of 6.22 million square kilometers (SN Online: 9/19/16). But in this world of changing climate, extreme summer ice loss has become almost expected. More novel in 2016 were glimpses of the complex biological consequences...

    12/14/2016 - 07:37 Climate, Animals, Plants
  • Feature

    For robots, artificial intelligence gets physical

    View the video

    In a high-ceilinged laboratory at Children’s National Health System in Washington, D.C., a gleaming white robot stitches up pig intestines.

    The thin pink tissue dangles like a deflated balloon from a sturdy plastic loop. Two bulky cameras watch from above as the bot weaves green thread in and out, slowly sewing together two sections. Like an experienced human surgeon...

    11/02/2016 - 17:16 Robotics, Science & Society
  • Feature

    Lawrence David’s gut check gets personal

    Lawrence David, 33Computational biologistDuke University

    A Jim Carrey movie inspired computational biologist Lawrence David to change the course of his research. As a graduate student, David saw Yes Man, a 2008 film in which Carrey’s character is forced to say yes to all propositions.

    David thought the movie’s message about opening yourself to new experiences, even uncomfortable ones,...

    09/21/2016 - 11:06 Human Evolution, Microbes, Cells