Latest Issue of Science News

5/2/15 Cover

Search Content

E.g., 04/25/2015
E.g., 04/25/2015
Your search has returned 777 images:
Your search has returned 3113 articles:
  • Science Ticker

    City- and country-dwelling microbes aren’t so different

    Deep breaths of country air might feel fresh and clean compared to the polluted city. But city or country, you’re probably sucking in similar microbes. 

    Citizen scientists in the Wild Life of Our Homes project took 1,200 dust swabs from outdoor doorways and sent them to scientists that the University of Colorado, Boulder. Researchers...

    04/24/2015 - 15:29 Microbes
  • Science Ticker

    Mosquito bites might be foretold in genes

    Whether a mosquito finds you tasty might be coded in your genes.

    Plenty of factors could drive a mosquito's desire to bite: its prey's diet, body temperature, pregnancy or even body odor. Genes partially control a person’s unique odor, so researchers used data from 19 sets of female fraternal twins and 18 sets of identical twins to see whether chemicals in a person’s aroma might make...

    04/22/2015 - 14:20 Genetics, Animals, Health
  • Wild Things

    Your toy stegosaurus may be a girl

    Are your toy dinosaurs boys or girls? One Science News editor decided her plush stegosaurus was male and named him Franklin. It was as good a guess as any since there’s really no way to tell a dinosaur’s gender just by looking at it. Even paleontologists can’t always determine gender. Female...

    04/22/2015 - 14:00 Paleontology, Evolution
  • News

    Bees may like neonicotinoids, but some may be harmed

    Bees don’t have the mouthpart sensitivity to taste — and thus can’t avoid — nectar tainted with neonicotinoid pesticides, new lab tests indicate. And the charm of nicotine may even seduce bees into favoring pesticide-spiked nectar.

    Outdoor tests also show that neonicotinoid exposure for some wild bees can be worrisome, a second paper reports. Together, the studies renew questions about...

    04/22/2015 - 13:00 Animals, Conservation, Toxicology
  • Science Ticker

    Only three wolves left on Michigan island

    The longest running study in history on predator-prey interactions may be at an end, say Michigan Technological University researchers. The reason: nearly all the predators have died.

    Only three wolves remain on Isle Royale, a wilderness island in northern Michigan and the site of a 57-year-old...

    04/22/2015 - 11:02 Animals, Ecosystems
  • 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
  • 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
  • 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