Life

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We summarize the week's scientific breakthroughs every Thursday.

  1. Life

    Human encroachment threatens chimpanzee culture

    Human activity is affecting chimps’ behavioral repertoire, a new study suggests. Creating chimp cultural heritage sites might save unique behaviors.

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  2. Life

    How helpful gut microbes send signals that they are friends, not foes

    Some beneficial gut bacteria use unique form of communication to let immune cells know that they’re friendly.

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  3. Astronomy

    Readers have questions about Ultima Thule, thirsty plants and vitamin D

    Readers had comments and questions about Ultima Thule, photosynthesis and more.

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  4. Health & Medicine

    FDA has approved the first ketamine-based antidepressant

    A nasal spray with a ketamine-based drug promises faster relief from depression for some people.

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  5. Oceans

    Tiny bits of iron may explain why some icebergs are green

    Scientists originally thought the green hue of some icebergs came from carbon particles. Instead, iron oxides may color the ice.

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  6. Life

    This spider slingshots itself at extreme speeds to catch prey

    By winding up its web like a slingshot, the slingshot spider achieves an acceleration rate far faster than a cheetah’s.

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  7. Genetics

    A CRISPR spin-off causes unintended typos in DNA

    One type of CRISPR gene editor makes frequent and widespread mistakes, studies in mice and rice reveal.

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  8. Health & Medicine

    Ripples race in the brain as memories are recalled

    A fast brain wave called a ripple often came before a person’s correct answer on a memory test.

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  9. Animals

    Bears that eat ‘junk food’ may hibernate less and age faster

    Wild black bears snacking on leftovers of sugary, highly processed foods in Colorado show possible signs of faster cellular wear.

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  10. Life

    Eating a lot of fiber could improve some cancer treatments

    A high-fiber diet, which boosts the diversity of gut microbes, may make an immune therapy against skin cancer more effective.

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  11. Neuroscience

    How singing mice belt out duets

    A precise timing system in the brain helps musical rodents from the cloud forests of Costa Rica sing to one another.

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  12. Animals

    What spiders eating weird stuff tell us about complex Amazon food webs

    By documenting rare events of invertebrates eating small vertebrates, scientists are shedding new light on the Amazon rainforest’s intricate ecosystem.

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