Vol. 187 No. 6
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More Stories from the March 21, 2015 issue

  1. Neuroscience

    With good timing, experiences can rewire old brains

    New experiences can rewire old brains — but the timing has to be just right.

  2. Neuroscience

    Shots of brain cells restore learning, memory in rats

    Scientists healed damage caused to rats’ brains from radiation by injecting cells that replenish the insulation on neurons.

  3. Neuroscience

    A brain at rest offers clues to Parkinson’s, Alzheimer’s

    PET scans reveal that the breakdown of brain networks differs in Parkinson’s and Alzheimer’s diseases.

  4. Astronomy

    Stellar nursery gives birth to quadruplets

    Four young stars, still in their cocoons, show that binary and other multiple star systems form together.

  5. Animals

    When you’re happy and you show it, dogs know it

    A new test using pictures of halves of human faces challenges dogs’ abilities to read people’s emotions.

  6. Oceans

    On East Coast, sea levels lean southward

    On North America’s East Coast, sea levels tilt slightly downward to the north, new research finds.

  7. Planetary Science

    Enceladus ocean may resemble Antarctic lake

    The pH of a subsurface sea on a moon of Saturn resembles an ice-covered lake in Antarctica where microbial mats thrive.

  8. Genetics

    For penguins, it’s a matter of no taste

    Penguins lack taste genes for bitter, sweet and umami.

  9. Ecosystems

    Fooled you! Whirling tails of luna moths deflect bat attacks

    Luna moths can use their tails to reflect the echolocation pings of bats, tricking the predators into striking the tails instead of less expendable body parts.

  10. Genetics

    Catalog of DNA modifications produces surprises

    A map of chemical modifications of DNA and its associated proteins shows how the genome changes during development and disease.

  11. Cosmology

    The past according to Planck: Cosmologists got a lot right

    New results from the Planck satellite largely support cosmologists’ theories, but leave the door open for new discoveries.

  12. Ecosystems

    Bluebird moms inadvertently fuel wars between species

    Extra hormones delivered to eggs holding sons in tough times end up driving one bluebird species to chase off another

  13. Psychology

    Gene variant may foretell success in program for at-risk kids

    Disruptive children with DNA twist show biggest turnaround with 10-year intervention.

  14. Earth

    Steam bubbles carry gold and sulfur up from Earth’s depths

    Dense blends of metals and sulfur get a ride to the surface on water vapor bubbles.

  15. Health & Medicine

    Early peanut exposure can reduce likelihood of allergy

    In many infants at risk of developing a peanut allergy, early and steady exposure to peanut butter prevents it, a new study finds.

  16. Paleontology

    Hippo history extracted from fossil teeth found in Kenya

    Fossilized teeth from the newly identified Epirigenys lokonensis, an ancestor of the hippopotamus, are filling in some of the mammoth mammal’s history.

  17. Quantum Physics

    Physicists double their teleportation power

    In a teleportation first, physicists transfer two quantum properties from one photon to another.

  18. Anthropology

    Wheat reached England before farming

    European hunter-gatherers may have traded for agricultural products 8,000 years ago.

  19. Humans

    Genetic tweaks built humans’ bigger brains

    Genetic tweaks may make human brains big.

  20. Astronomy

    Planet collisions may have rearranged crowded solar systems

    Solar systems discovered by Kepler with just one or two worlds may be remnants of planet families that were once far more crowded.

  21. Genetics

    Protein comparisons proposed in 1960s for tracking evolution

    In 1965, two scientists spotted molecular signatures of primate divergence. The tool became widespread for studying evolution – and one researcher’s career ended in crime.

  22. Animals

    The running of the quolls

    Northern quolls run like crazy to find mates.

  23. Animals

    Lemurs expected to lose much of their ranges this century

    As the climate warms, Madagascar’s little primates will lose habitat, threatening some with extinction.

  24. Health & Medicine

    Teens have higher anaphylaxis risk than younger kids

    Adolescents may be more apt to experience an extreme allergic reaction than younger children, researchers report.

  25. Agriculture

    Cage free isn’t good enough for livestock, ‘The Modern Savage’ argues

    Even on a small farm, life can be brutal for animals, historian and animal rights advocate says in new book.

  26. Astronomy

    Closest star approach to the sun

    Astronomers discover a binary system that made the closest known flyby of the sun.