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  1. Ambopteryx longibrachium
    Paleontology

    Bat-winged dinosaurs were clumsy fliers

    The two known species of bat-winged dinosaurs were a dead end when it comes to the evolution of bird flight, a new study finds.

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  2. ancient bone tool
    Anthropology

    Homo erectus, not humans, may have invented the barbed bone point

    Carved artifacts excavated from Tanzania’s Olduvai Gorge suggest now-extinct hominids made barbed bone points long before humans did, researchers say.

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  3. workers standing at a drilling site in Kenya's Koora basin
    Anthropology

    How environmental changes may have helped make ancient humans more adaptable

    An East African sediment core unveils ecological changes underlying a key Stone Age transition.

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  4. OSIRIS-REx spacecraft illustration
    Space

    NASA’s OSIRIS-REx survived its risky mission to grab a piece of an asteroid

    NASA’s OSIRIS-REx spacecraft just tried to grab a piece of asteroid Bennu. If successful, the spacecraft will return the sample to Earth in 2023.

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  5. diabolical ironclad beetle
    Animals

    The diabolical ironclad beetle can survive getting run over by a car. Here’s how

    The diabolical ironclad beetle is an incredibly tough little creature. A peek inside its exoskeleton reveals what makes it virtually uncrushable.

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  6. Naked mole-rats in a pile
    Animals

    Naked mole-rats invade neighboring colonies and steal babies

    Naked mole-rats invade neighboring colonies, steal pups and evict any others left behind. The show of force may be central to their underground lifestyle.

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  7. ocean
    Oceans

    Even the deepest, coldest parts of the ocean are getting warmer

    Deep-sea temperatures seem to be rising, but it’s too soon to say whether that’s a result of climate change caused by humans, researchers say.

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  8. fire ants building syphons
    Animals

    Fire ants build little syphons out of sand to feed without drowning

    To escape a watery death, some fire ants use build sand structures that draw the insects’ sugary, liquid food out of containers and to a safer place.

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  9. Hainan gibbon on a rope bridge
    Animals

    A rope bridge restored a highway through the trees for endangered gibbons

    When critically endangered Hainan gibbons started making dangerous leaps across a new gully, researchers came up with an alternative route.

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  10. people wearing masks
    Humans

    We still don’t know what COVID-19 immunity means or how long it lasts

    Without knowing how long immunity lasts, it may be impossible to reach herd immunity without a vaccine or an extremely high death toll.

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  11. Anopheles mosquito
    Chemistry

    Heating deltamethrin may help it kill pesticide-resistant mosquitoes

    A simple chemical trick creates a much faster-acting form of a common insecticide, which could help fight malaria and other mosquito-borne illnesses.

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  12. COVID-19 drug remdesivir
    Health & Medicine

    Remdesivir doesn’t reduce COVID-19 deaths, a large WHO trial finds

    An international study of more than 11,000 people finds that remdesivir doesn’t prevent deaths from COVID-19, but the drug may still be useful.

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