Humans

More Stories in Humans

  1. Archaeology

    Roman gladiators really fought big cats, ancient bite marks suggest 

    This is the first skeletal evidence of an ancient Roman gladiator show — or execution — involving an exotic animal.

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  2. Life

    Research without lab animals? New tech is making it possible

    For decades, scientists have worked to phase out the use of animals in research. AI, ‘lungs’ on a chip and more are bringing that goal closer.

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  3. Health & Medicine

    Three U.S tick species may trigger a mysterious red-meat allergy

    This little-known allergy, known as alpha-gal syndrome, is potentially deadly. Here’s what we know about it — and how to avoid the tick bites that seem to cause it.

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  4. Health & Medicine

    Two cities stopped water fluoridation. Kids’ teeth suffered

    As calls to end fluoride in water get louder, worsening dental health in children of Calgary, Canada, and Juneau, Alaska, offer a cautionary tale.

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  5. Brain

    Brain cells that make you feel full also make you crave dessert

    If you want a sweet treat when you feel full after a big meal, blame your brain. Tests in mice and people suggest that the same cells signal satiety and a hunger for sugar.

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  6. Health & Medicine

    Let’s learn about vaccines

    These medical treatments have saved millions of lives and spared many others from seriously unpleasant infections.

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  7. Brain

    Parakeets talk using brain areas similar to ours

    Brain activity during vocalizing in small parrots — called budgerigars or parakeets — shows a similar pattern to what’s seen in people.

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  8. Materials Science

    This electric ‘slime’ might help injuries heal faster

    Our bodies call in healing cells with an electrical signal. When stretched or squeezed, this gel makes electricity that could boost that alert.

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  9. Chemistry

    A new map of Africa sheds light on the origins of enslaved people

    Mapping the element strontium across the continent is helping track down the birthplaces of enslaved Africans brought to the Americas.

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