Vol. 189 No. 4
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More Stories from the February 20, 2016 issue

  1. Oceans

    Phytoplankton flunk photosynthesis efficiency test

    Nutrient-poor ocean waters make phytoplankton photosynthesis inefficient

  2. Life

    Signs of food allergies may be present at birth

    Overactive immune cells may prime babies for food allergies.

  3. Environment

    PCB levels still high in Europe’s killer whales, smaller dolphins

    PCBs banned for decades still show up at extremely high concentrations in Europe’s killer whales and other dolphins.

  4. Archaeology

    Humans visited Arctic earlier than thought

    Human weapon injuries on mammoth bones show humans were in the Arctic up to 15,000 years earlier than researchers thought.

  5. Neuroscience

    Measuring brain waves may help predict a patient’s response to anesthesia

    Brain signatures hint at whether a person will resist or succumb to anesthesia.

  6. Oceans

    Ocean heating doubles

    Earth’s oceans now absorb twice as much heat as they did 18 years ago, with more than a third of that warmth going into the ocean depths.

  7. Life

    MicroRNAs manage gut microbes

    MicroRNAs mold gut microbes into healthier communities for the host.

  8. Anthropology

    Attack 10,000 years ago is earliest known act of warfare

    Human skeletons unearthed in East Africa show signs of a roughly 10,000-year-old lethal raid.

  9. Planetary Science

    Time running out on comet lander

    Philae’s days are numbered as temperatures on comet 67P drop and attempts to communicate with the lander fail.

  10. Climate

    2015 smashed heat records

    Spurred by global warming and a “super El Niño,” 2015 now ranks as the warmest year since record-keeping began in 1880.

  11. Health & Medicine

    Rapid spread of Zika virus in the Americas raises alarm

    After blazing through Brazil, a mosquito-borne virus called Zika, which may cause birth defects, is now poised to jump to the United States.

  12. Environment

    Converted milk proteins clean pollution, strike gold

    A new membrane uses sticky amyloid proteins to trap contaminants in water.

  13. Tech

    Online reading behavior predicts stock movements

    People's current web surfing patterns predict future stock movements. The discovery could help authorities to stabilize financial markets.

  14. Quantum Physics

    Quantum histories get all tangled up

    Multiple versions of history may be quantum entangled just like particles, a new experiment suggests.

  15. Neuroscience

    Immune system gene leads to schizophrenia clue

    Excessive snipping of nerve cell connections may contribute to schizophrenia.

  16. Planetary Science

    Computer simulations heat up hunt for Planet Nine

    A giant planet in the far outer solar system could explain orbital oddities of bodies in the fringes of the Kuiper belt.

  17. Animals

    Harvester ants are restless, enigmatic architects

    Florida harvester ants dig complex, curly nests over, then leave and do it again.

  18. Science & Society

    Soviets nailed first landing on moon

    The first spacecraft to safely land on the moon touched down on the lunar surface in 1966.

  19. Agriculture

    Plants trick bacteria into attacking too soon

    Scientists have discovered that a plant compound interferes with bacterial communication.

  20. Tech

    Pill measures gut gas

    A gas-sensing ingestible capsule tested in pigs could someday help doctors assess people’s gastrointestinal health.

  21. Animals

    Tegu lizards warm up for mating

    Despite their cold-blooded reputation, tegu lizards boost their body heat while on the prowl for a mate, biologists report online January 22 in Science Advances.

  22. Genetics

    Bubonic plague hung out in Europe

    The plague bacterium Yersinia pestis may have lurked in a medieval European reservoir for at least 300 years, researchers from Germany suggest January 13 in PLOS ONE.