Search Results for: Mice

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4,997 results
  1. photo of a mouse standing on its hind legs in a glass bowl and peering over the edge
    Health & Medicine

    A hormone shot helped drunk mice sober up quickly

    Drunk mice injected with the hormone FGF21 woke up and regained their balance faster than inebriated mice that did not receive the shot.

    By Freda Kreier
  2. A photo of a small brown mouse running across a gray floor.
    Neuroscience

    In mice, anxiety isn’t all in the head. It can start in the heart

    Scientists used optogenetics to raise the heartbeat of a mouse, making it anxious. The finding could offer a new angle for studying anxiety disorders.

    By Bethany Brookshire
  3. An illustration of Streptococcus pneumoniae bacteria, represented as orange circles, infecting brain cells.
    Neuroscience

    How meningitis-causing bacteria invade the brain

    Microbes behind bacterial meningitis hijack pain-sensing nerve cells in the brain’s outer layers, disabling a key immune response, a mouse study shows.

    By Jackie Rocheleau
  4. A house mouse eating on the ground
    Animals

    A natural gene drive could steer invasive rodents on islands to extinction

    A few genetic tweaks to a readily passed-on chunk of DNA could sterilize a mouse population, eliminating them in as little as 25 years.

    By Bethany Brookshire
  5. A microscope image of a nerve cell with colors highlighting special receptors.
    Health & Medicine

    Psychedelics may improve mental health by getting inside nerve cells

    Psychedelics can get inside neurons, causing them to grow. This might underlie the drugs’ potential in combatting mental health disorders.

    By McKenzie Prillaman
  6. photo of a sleeping mouse in a field
    Neuroscience

    A hit of dopamine sends mice into dreamland

    New results are some of the first to show a trigger for the mysterious shifts between REM and non-REM sleep in mice.

    By Laura Sanders
  7. Aedes aegypti mosquitoes
    Health & Medicine

    The flowery scent of a Zika or dengue infection lures mosquitoes

    Mice and humans infected with dengue emit acetophenone, attracting bloodsucking mosquitoes that could then transmit the viruses to new hosts.

    By Erin Garcia de Jesús
  8. Three up close photos of index fingers with purple lines drawn on each to show their fingerprint shape. The first on the left shows the arch shape, the second in the middle shows the loop shape and the third on the right shows the whorl shape.
    Health & Medicine

    How fingerprints form was a mystery — until now

    A theory proposed by British mathematician Alan Turing in the 1950s helps explain how fingerprint patterns such as arches and whorls arise.

    By McKenzie Prillaman
  9. three gray wolves standing in the snow
    Life

    A parasite makes wolves more likely to become pack leaders

    In Yellowstone National Park, gray wolves infected with Toxoplasma gondii make riskier decisions, making them more likely to split off from the pack.

    By Jake Buehler

  10. Readers discuss jazz music, the next generation of astronauts and more

    By Science News Staff
  11. An elephant seen behind an electric fence
    Animals

    A new book asks: What makes humans call some animals pests?

    In an interview with Science News, science journalist Bethany Brookshire discusses her new book, Pests, and why humans vilify certain animals.

    By Deborah Balthazar
  12. An illustration of a nerve cell with extensions branching out to create connections called synapses.
    Neuroscience

    Adult mouse brains are teeming with ‘silent synapses’

    Nerve cell connections thought to be involved mainly in development could explain how the brain keeps making new memories while holding onto old ones.

    By Claudia López Lloreda