Vol. 183 No. #11
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More Stories from the June 1, 2013 issue

  1. Humans

    Group size affects racial makeup of friend groups

    Larger settings seem to promote segregation, simulation finds.

  2. Life

    Infants, whether mice or human, love to be carried

    Being toted around calms and quiets babies of both species.

  3. Psychology

    Disputed signs of consciousness seen in babies’ brains

    Within five months of birth, infants produce a possible neural marker of being aware of what they see.

  4. Health & Medicine

    Circumcision changes penis biology

    Altered mix of microbes might reduce susceptibility to viral infections.

  5. Life

    Mutation makes H5N1 flu lose its grip

    Laboratory-added genetic change makes avian influenza unable to bind to bird cells.

  6. Earth

    Early Earth’s chlorine blown away by giant impacts

    Low levels of chlorine on planet's surface have long puzzled scientists.

  7. Humans

    Web searches for money words anticipate market moves

    Dow drops follow weeks when more people search Google for ‘debt’ or ‘stocks.’

  8. Humans

    Maya civilization’s roots may lie in ritual

    Cultural exchanges in southern Mexico and Guatemala tied to ancient society's rise.

  9. Life

    Signs of culture in whales and monkeys

    Mammals learn feeding behaviors from their friends and family members.

  10. Health & Medicine

    Hookah smoking delivers carcinogens and carbon monoxide

    Water pipes deliver carcinogens, nicotine and carbon monoxide to the user, a study finds.

  11. Health & Medicine

    Brain measurements predict math progress with tutoring

    The size and connections of a brain structure associated with memory formation predicted learning ability in 8- and 9-year-old children.

  12. Life

    Genetic fossils betray hepatitis B’s ancient roots

    Modern bird genomes reveal evidence that virus is at least 82 million years old.

  13. Tech

    Recreating the eye of the fly

    Inspired by insect vision, camera with 180 linked lenses captures panoramic views.

  14. Physics

    Counting cracks in glass gives speed of projectile

    There is a simple relationship between an object's velocity and the number of spokes it leaves in a dinged windshield or fractured windowpane.

  15. Humans

    Cannibalism in Colonial America comes to life

    Researchers have found the first skeletal evidence that starving colonists ate their own.

  16. Humans

    Human ancestors had taste for meat, brains

    A mix of hunting and scavenging fed carnivorous cravings of early Homo species.

  17. Animals

    Winged robots may shed light on fly aerobatics

    After years of trying, researchers create flapping machines that can hover and perform rudimentary flight maneuvers.

  18. Health & Medicine

    Highlights from the Pediatric Academic Societies meeting

    Highlights from the pediatrics meeting held May 4-7 in Washington, D.C., include adolescent suicide risk and access to guns, a reason to let preemies get more umbilical cord blood and teens' cognitive dissonance on football concussions.

  19. Climate

    Ice loss from Greenland’s glaciers may level off

    Simulation suggests long-term effect on sea level not as dire as some predictions.

  20. Life

    Gut bacteria adapt to life in bladder

    E. coli moving between systems may cause urinary tract infections.

  21. Earth

    Japan’s 2011 earthquake upped Tokyo’s risk

    Chance more than doubled that capital city will soon experience big temblor, researchers calculate.

  22. Climate

    Carbon dioxide in atmosphere reaches landmark level

    At 400 parts per million, greenhouse gas concentration is now higher than it has been for millions of years.

  23. Animals

    Embracing the swarm

    Entomologist Michael Raupp is enjoying Swarmageddon. The giant batch of cicadas began emerging from the ground in late April and will be heard in some northeastern states through June.

  24. Science & Society

    SN Online

  25. Upcoming events

    Science Future for June 1, 2013.

  26. Genetics

    Frankenstein’s Cat

    Cuddling Up to Biotech's Brave New Beasts by Emily Anthes.

  27. Chemistry

    Sweet Confusion

    Does high fructose corn syrup deserve such a bad rap?

  28. Psychology

    Closed Thinking

    Without scientific competition and open debate, much psychology research goes nowhere.

  29. Letters to the editor

    Fusion reactions It is not true that fusion packs the highest punch of any known energy-generating process (“Ignition failed,” SN: 4/20/13, p. 26). Matter-antimatter annihilation far exceeds it (Star Trek had it right back in the 1960s). I believe that under certain conditions, matter falling into a black hole can also yield more energy than […]

  30. Health & Medicine

    “Draw” body by sound

    Science Past from the issue of June 1, 1963.

  31. Science & Society

    The Girls of Atomic City

    The Untold Story of the Women Who Helped Win World War II by Denise Kiernan.