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  • Wild Things

    Growth of mining on land may promote invasions at sea

    Some 90 percent of the world’s trade spends at least part of its journey at sea. Ships carry everything from oil to...

    04/21/2015 - 19:46 Animals, Oceans
  • News

    Bolder snails grow stronger shells

    Bold snails are built to be tough.

    A close look at bold snails’ shells reveals that they are rounder, thicker and more bite-resistant than shy snails’ shells. This finding, published online April 22 in Biology Letters, shows that within a species, bolder individuals can build bodies with...

    04/21/2015 - 19:05 Physiology, Animals, Evolution
  • News in Brief

    Finland’s brown bears on surprise fast track to recover diversity

    Once near extinction, Finland’s brown bears are defying expectations in how quickly they are regaining the genetic underpinnings of a healthy population.

    In just a generation and a half, the nation’s southern bears have reached a level of genetic diversity and population mixing that theorists predict would typically take 10 generations or more,...

    04/21/2015 - 19:05 Animals, Genetics, Conservation
  • Growth Curve

    Science may get sidelined in artificial turf debate

    This guest post is from Science News chemistry and environment writer Beth Mole.

    The news and Internet are lush with worrisome reports about synthetic turf: Your child’s playground might be teeming with toxic chemicals. The city park could expose her to noxious dust. And if her soccer team plays on the fake fields, she could get cancer.

    Largely absent from...

    04/21/2015 - 15:52 Toxicology, Health
  • It's Alive

    When mom serves herself as dinner

    View the slideshow

    In a less squeamish universe, Mother’s Day cards would have a spider on them. She’s extreme in her generosity and sacrifice: tireless regurgitation, liquefying guts and the personal touch in family dinners.

    Female Stegodyphus lineatus spiders spin loosely woven webs “like a ping-pong net,” says Mor Salomon of the Israel Cohen...

    04/21/2015 - 13:00 Animals, Evolution
  • Science Ticker

    Atomic clock will keep precise time for 15 billion years

    The world’s best timepiece just got even better.

    A new atomic clock described April 21 in Nature Communications is about three times as precise as its record-setting predecessor. The clock, which builds...

    04/21/2015 - 11:00 Quantum Physics, Physics
  • Science Visualized

    Monster storm dominates view from space station

    Looking down from 400 kilometers above Earth, astronauts aboard the International Space Station couldn’t help but gawk at a huge typhoon churning in the Western Pacific. On March 31, European Space Agency astronaut Samantha Cristoforetti captured this photo of Typhoon Maysak at near-peak strength as it drifted toward the Philippines.

    Maysak was the record-breaking second major cyclone to...

    04/21/2015 - 09:00 Climate
  • Say What?

    Whether froglets switch sexes distinguishes ‘sex races’

    Sex races
    \SEHKS REHY-sez\ pl. n.

    Groups of organisms within a single species that differ dramatically in how gonads develop.

    The best-studied examples are the three sex races of Rana temporaria frogs, a species found from Spain to Norway. In the milder southern climates, virtually all new froglets emerge from tadpolehood with ovaries. Only later do about half of...

    04/21/2015 - 08:00 Animals, Genetics, Development
  • Science Ticker

    Shipwrecked bubbly gives chemists a taste of the past

    Champagne preserved at the bottom of the Baltic Sea for 170 years has given chemists a glimpse of past winemaking methods.

    In 2010, researchers collected 168 remarkably well-preserved bottles of the bubbly booty from a shipwreck. Possibly the most striking feature of the champagne is its sweetness, measuring more than 140 grams per liter of sugar (champagne nowadays typically has sugar...

    04/21/2015 - 06:00 Chemistry, Science & Society
  • Science Ticker

    Smart card taps track clogs on London's Tube

    Your smart card could be key in making the subway more efficient. By tracking passengers' smart card use when entering and exiting the London Underground subway system, researchers have developed a model of passengers’ travel patterns that can be used to estimate how vulnerable stations are to closures and other kinds of service disruptions.

    Transportation planners could use a station’s...

    04/20/2015 - 17:33 Technology