Life

  1. Animals

    When it’s hot, echidnas blow snot bubbles to cool off

    These spiky Australian mammals have a trick to moisten their noses, allowing them to survive hot temperatures that should kill them.

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  2. Brain

    Scientists Say: Anxiety

    Some nervousness, or anxiety, is normal. Too much can be harmful.

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  3. Health & Medicine

    New brain scans may show if a concussion has not yet healed

    Concussions change certain brain waves, and delta waves may be the best signs of when teens can return to competitive sports.

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  4. Materials Science

    Analyze This: Algae behind blue-glowing waves light up a new device

    Some algae glow blue when they experience forces. Held in transparent plastic, they now make devices light up in response to gentle pushes and tugs.

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  5. Archaeology

    Carvings on Australia’s boab trees reveal a people’s lost history

    Archaeologists and an Aboriginal family are working together to find and document a First Nations group’s lost ties to the land.

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  6. Microbes

    Bacteria give some cheeses their distinct flavors

    Linking types of bacteria to specific flavors could help cheesemakers tweak their products — or even develop new cheese flavor.

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  7. Animals

    How can Baby Yoda be 50 years old?

    Animals with wings, big bodies or other protections from predators are more likely to evolve long lifespans.

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  8. Chemistry

    Scientists Say: Rubisco

    Rubisco is a key protein in the process of photosynthesis, which feeds plants — and, in turn, us.

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  9. Animals

    A love of small mammals drives this scientist

    Alexis Mychajliw’s science is driven by her love of animals. She now looks to tar pits and fossilized poop to understand ancient ecosystems.

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  10. Computing

    Sleep helps AI models learn new things without forgetting old ones

    Breaks in training meant to mimic human sleep helped artificial intelligence learn multiple tasks.

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  11. Animals

    Prairie voles can couple up even without the ‘love hormone’

    Scientists thought the chemical oxytocin was required to make prairie voles mate. They were wrong.

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  12. Health & Medicine

    Explainer: Why it’s easier to get sick in the winter

    Low humidity helps viruses survive, and cold weather blunts some of the body’s immune responses — making colds and other viral infections more likely.

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