All Stories

  1. Humans

    Some identical twins don’t have the exact same DNA

    Identical twins may not be exactly identical. Mutations may arise early in development that account for tiny genetic differences between siblings.

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  2. Ecosystems

    Can people protect as much space as nature needs?

    To save biodiversity, nations are drafting a plan to protect 30 percent of Earth by 2030. Up for debate is how best to do that.

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  3. Physics

    What did you say? Fabric masks can really muffle voices

    Some types of face masks muffle speech more than others — something that teachers should take into account.

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  4. Animals

    Explainer: Insects, arachnids and other arthropods

    Arthropods are all around us, but identifying them can be hard. To start, look at the four main groups: chelicera, crustaceans, myriapods and insects.

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  5. Animals

    Honeybees fend off deadly hornets by decorating hives with poop

    Bees usually collect pollen and nectar. Scientists were surprised to find that Asian honeybees also gather animal dung to defend their hives.

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  6. Life

    Scientists Say: Molecule

    A molecule is a group of atoms linked with chemical bonds. It’s the smallest particle of a substance that has all of its chemical properties.

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  7. Agriculture

    Dew collector brings water to thirsty plants

    This invention grabs water from the air at night. All it needs is the sun’s warmth the next day to release that moisture to growing plants.

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  8. Environment

    Camels have been dying after mistaking plastic for food

    Plastic waste has been building up in the guts of some camels. It may now be killing off one percent of them in the United Arab Emirates each year.

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  9. Math

    What the mummy’s curse reveals about your brain

    A man died soon after opening a mummy’s tomb. But don’t assume the mummy killed him. Statistics help explain why coincidences may not be meaningful.

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  10. Physics

    Let’s learn about gravity

    Gravity is an attraction between objects with mass. The more massive the object, the more gravity it’s got.

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  11. Animals

    Africa’s poisonous rats are surprisingly social

    Scientists confirm that the African crested rat can safely cover itself in poison and also find that the rodents may live in pairs — or even family groups.

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  12. Space

    Our feverish universe is getting hotter every day

    For the first time, astronomers have taken the temperature of the cosmos at different times in its history. Galaxy clusters are cranking up the heat.

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