Genetics

  1. twin girls stand side by side
    Genetics

    All identical twins may share a common set of chemical markers on their DNA

    Identical twins may share a set of unique chemical tags on their DNA that could be used to identify individuals who were conceived as identical twins.

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  2. image of a row of statues on Easter Island
    Genetics

    DNA offers a new look at how Polynesia was settled

    Modern genetic evidence suggests that statue builders on islands such as Rapa Nui, also known as Easter Island, had a shared ancestry.

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  3. skull bones from an ancient Indonesian woman
    Anthropology

    Ancient DNA shows the peopling of Southeast Asian islands was surprisingly complex

    Ancient DNA from a hunter-gatherer skeleton points to earlier-than-expected human arrivals on Southeast Asian islands known as Wallacea.

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  4. a group of Ayta people in front of huts beside a river
    Genetics

    An Indigenous people in the Philippines have the most Denisovan DNA

    Genetic comparisons crown the Indigenous Ayta Magbukon people as having the most DNA, 5 percent, from the mysterious ancient hominids.

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  5. close-up of a tardigrade from above
    Life

    Near-invincible tardigrades may see only in black and white

    A genetic analysis suggests that water bears don’t have light-sensing proteins to detect ultraviolet light or color.

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  6. a crowd of people
    Humans

    Only a tiny fraction of our DNA is uniquely human

    Some of the exclusively human tweaks to DNA may have played a role in brain evolution.

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  7. greater horseshoe bats hanging from cave ceiling
    Health & Medicine

    One mutation may have set the coronavirus up to become a global menace

    A study pinpoints a key mutation that may have put a bat coronavirus on the path to becoming a human pathogen, helping it better infect human cells.

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  8. Romanesco cauliflower
    Plants

    How Romanesco cauliflower forms its spiraling fractals

    By tweaking just three genes in a common lab plant, scientists have discovered the mechanism responsible for one of nature’s most impressive fractals.

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  9. illustration of coronavirus particles in blood
    Health & Medicine

    How your DNA may affect whether you get COVID-19 or become gravely ill

    A study of 45,000 people links 13 genetic variants to higher COVID-19 risks, including a link between blood type and infection and a newfound tie between FOXP4 and severe disease.

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  10. a magnified image of an egg cell surrounded by sperm
    Genetics

    Embryos appear to reverse their biological clock early in development

    A new study suggests that the biological age of both mouse and human embryos resets during development.

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  11. image of Mr. Frosty the gecko
    Animals

    How a gecko named Mr. Frosty could help shed new light on skin cancer

    The distinctive coloring and skin tumors of a type of gecko called Lemon Frost have been pegged to a gene implicated in human skin cancer.

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  12. Chinese mountain cat
    Animals

    Chinese mountain cats swap DNA with domestic cats, but aren’t their ancestors

    DNA suggests little-studied Chinese mountain cats have been rendezvousing with pet cats on the Qinghai-Tibetan Plateau since the 1950s.

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