Life

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We summarize the week's scientific breakthroughs every Thursday.

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  1. Life

    Mouse sperm parties make for straight swimmers

    Mouse sperm hunt for eggs in packs, but grouping doesn’t boost speed. Instead, gangs of the reproductive cells move in straighter lines.

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  2. Animals

    Elephant’s big nose wins most sensitive sniffer

    A genetic survey reveals that African elephants harbor more smell sensors than any other known animal.

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  3. Neuroscience

    For rats, a break from stress isn’t worth the relief

    An unplanned vacation from stress might seem like a good idea, but a new study in rats shows that unpredictable escapes from pressure produce more strain on the first day back.

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  4. Life

    Bacteria’s bodies do whirlies to help them swim

    Kidney-shaped Caulobacter crescentus bacteria swim with both their corkscrew propellers called flagella and their bodies, scientists say.

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  5. Genetics

    Hints about schizophrenia emerge from genetic study

    From thousands of genomes, researchers pinpoint dozens of DNA changes that may underlie schizophrenia

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  6. Animals

    Termite soldiers locate battles with vibrational clues

    To locate invasions, termite soldiers listen for millisecond-long delays in vibrational distress signals sent out by other soldiers.

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  7. Health & Medicine

    Carbs and gut microbes fuel colon cancer

    Western nations experience high levels of colon cancer, and carbo-loading gut microbes might explain why, says a new study in mice.

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  8. Microbes

    Gut microbes help packrats eat poison

    Antiobiotics and fecal transplants in desert woodrats shown that gut microbes can help plant-eaters metabolize toxins.

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  9. Ecosystems

    Offshore wind farms may be seal feeding grounds

    Harbor seals were tracked visiting offshore wind farms, probably to find food, researchers say.

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  10. Life

    Pregnancy disorder shares aspects with Alzheimer’s

    Misfolded proteins, the hallmark of Alzheimer’s and mad cow diseases, are found in urine of women with preeclampsia.

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  11. Neuroscience

    Obese women struggle to learn food associations

    In a lab experiment, women fail to connect color signal with tasty reward, a deficit that may contribute to obesity.

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  12. Microbes

    Front doors carry ‘thin patina’ of poop bacteria

    A new map shows that Americans’ front door frames are coated in gut-dwelling microbes.

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