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  • Wild Things

    How human activities may be creating coywolves

    No one knows for sure exactly how far the range of the red wolf (Canis rufus) might have extended. By the time anyone started wondering, their numbers had severely dwindled, a result of antipredator control programs, habitat destruction and matings with coyotes (C. latrans). By 1980, the wolves were declared extinct...

    04/01/2015 - 08:00 Animals, Conservation
  • Science Ticker

    Songbird crosses the Atlantic in a nonstop flight

    Every autumn, the blackpoll warbler (Setophaga striata) flies nonstop from Canada or New England south across the Atlantic Ocean and lands on the northern coast of South America three days later. In that time, the 12-gram birds travel 2,270 to 2,770 kilometers, and theirs is one of the longest transoceanic flights recorded in a songbird,  researchers ...

    03/31/2015 - 19:05 Animals
  • News

    Plate loss gave chain of Pacific islands and seamounts a bend

    The disappearance of a tectonic plate into Earth’s interior may be responsible for the distinctive bend in the chain of underwater mountains and islands that includes the Hawaiian archipelago.

    A reconstruction of the mantle flowing under the Pacific Ocean about 50 million years ago suggests that the submergence of the Izanagi Plate near East Asia reversed the flow’s direction. This...

    03/31/2015 - 14:14 Earth
  • News

    Ancient hominids moved into Greece about 206,000 years ago

    ST. LOUIS — Greece has long been known as a bastion of research into a civilization that gave birth to democracy 2,500 years ago. Now, the country appears poised to become a key player in the study of European Neandertals and ancient human groups that entered Southeast Europe from Homo sapiens’ African birthplace.

    New geological evidence from a Greek archaeological site...

    03/31/2015 - 12:00 Anthropology
  • Science Ticker

    Some superbugs lurk in Britain’s surf

    A small fraction of Escherichia coli floating at the surface of Britain’s coastal waters are resistant to antibiotics, researchers from the University of Exeter reported March 29 at the Society for General Microbiology’s Annual Conference in Birmingham, England.

    ...

    03/31/2015 - 07:30 Microbes, Health
  • How Bizarre

    Tampons: Not just for feminine hygiene

    Tampons are cheap and highly absorbent, which makes them the perfect tool for testing rivers for pollution. Tampons submerged in contaminated water shine blue under ultraviolet light because of the brightening chemicals they have sucked in, researchers report March 30 in the Water and Environment Journal.    

    Rivers can become...

    03/30/2015 - 20:15 Pollution
  • News

    Egg-meet-sperm moments are equal opportunities for girls and boys

    Girl or boy: For expecting parents, it’s a classic question. For scientists studying human demographics, it’s a head scratcher.

    Statistics seem to favor boys. On average, for every 105 boys born, only 100 girls are born. Scientists have credited the difference to more male embryos being conceived. But that’s not true, a new study suggests.

    Researchers from the United States and the...

    03/30/2015 - 15:24 Human Development, Biomedicine, Genetics
  • News

    Fracking chemicals can alter mouse development

    DENVER — Wastewater from hydraulic fracturing, or fracking, may tote several hormone-disrupting chemicals that can alter the development of mice, researchers reported March 23 at the national meeting of the American Chemical Society.

    Twenty-three chemicals used in fracking fluids can...

    03/30/2015 - 13:45 Toxicology, Development
  • Science Ticker

    Performance gains from Tommy John surgery still up for debate

    Major League baseball pitchers who undergo two Tommy John surgeries have shorter careers — by nearly a year on average — than similar-age pitchers who haven’t had the operation, researchers find. For the surgery, surgeons replace the damaged ulnar collateral ligament in the arm with a tendon taken from elsewhere in the body to reverse a career-ending injury.

    After two surgeries, pitchers...

    03/30/2015 - 09:00 Health
  • Say What?

    ‘Supernova sweeping’ cleans up a galaxy’s gas

    Supernova sweeping
    \SOO-per-NOH-vah SWEEP-eeng\ n.

    A process in which exploding stars push gas out of a galaxy.

    Supernovas might be the maid service of the universe. These explosions of stellar remnants work hand in hand with supermassive black holes to sweep out gas and shut down galaxies’ star-forming factories, new research suggests.

    The black holes at the cores of...

    03/30/2015 - 07:30 Astronomy