Vol. 183 No. #12
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More Stories from the June 15, 2013 issue

  1. Animals

    Tongue bristles help bats lap up nectar

    High-speed videos capture stretched-out tongue bumps that stretch out so nectar-feeding bats can slurp up their food.

  2. Life

    How a sea anemone grows its tentacles

    Creature's cells change shape to form appendages.

  3. Space

    Atom’s core gets pear-shaped

    Tapering asymmetry of some nuclei confirms predictions.

  4. Humans

    Europe is one big family

    Continent's ancestry merges about 30 generations ago, genetic study finds

  5. Health & Medicine

    Black women may have highest multiple sclerosis rates

    Large study counters common assumption that whites get MS more.

  6. Earth

    The Arctic was once warmer, covered by trees

    Pliocene epoch featured greenhouse gas levels similar to today's but with higher average temperatures.

  7. Psychology

    Brain training technique gets a critique

    In a new study, a popular style of memory workout leaves reasoning and mental agility flat.

  8. Life

    Body’s clock linked to depression

    Gene activity in the brain suggests that circadian rhythms are off-kilter in people with depression.

  9. Life

    Fossils point to ancient ape-monkey split

    Apes and monkeys split from a common ancestor more than 25 million years ago, fossil finds suggest.

  10. Climate

    Warming may not release Arctic carbon

    Element could stay locked in soil, 20-year study suggests.

  11. Life

    Cloning produces human embryonic stem cells

    Fine-tuning of technique used in other animals could enable personalized medicine.

  12. Materials Science

    3-D imaging, pixel by pixel

    Easy technique uses inexpensive equipment to make three-dimensional rendering.

  13. Planetary Science

    Gone perhaps, but Kepler won’t soon be forgotten

    Astronomers look forward to building on the planet-hunting telescope's discoveries.

  14. Paleontology

    Blogger busts dinosaur myths

    The Science Life.

  15. Humans

    Intel ISEF honors teens’ science

    Winners of science competition announced.

  16. Psychology

    Present Shock

    When Everything Happens Now by Douglas Rushkoff.

  17. Life

    View to a cell

    In 2013, Science News published a photo essay highlighting advances in microscopy that illuminate life within us, work that has now earned three researchers the 2014 Nobel Prize in chemistry.

  18. Life

    Life Support

    Studies reveal the placenta’s crucial role in healthy pregnancies.

  19. Letters to the editor

    Wet Earth Erin Wayman’s article “Faint young sun” (SN: 5/4/13, p. 30), about how the early Earth stayed warm enough for liquid water, made me wonder about the effect of the temperature of the planet itself. A hotter core, thinner crust, more volcanism — wouldn’t those factors in addition to atmospheric influences affect surface temperature? […]

  20. Planetary Science

    Thirty years to Mars

    Excerpt from the June 15, 1963, issue of Science News Letter.

  21. Animals

    Two books explore the weirdest life on Earth

    Zombie Birds, Astronaut Fish and Other Weird Animals by Becky Crew and Weird Life by David Toomey.