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  1. The not-so-sweet side of SARS-CoV-2 sugars

    The virus responsible for COVID-19 enters cells in part thanks to sugar molecules attached to surface Spike proteins.

  2. When evolution repeats itself

    Isolated wild populations of a species of fly and a virus that infects it show that, under similar conditions, viruses tend to evolve in the same way.

  3. Brain under stress

    Being exposed to high levels of the stress hormone cortisol has a sex-dependent effect on how the brain develops in the womb.

  4. Appetite-supressing hormone explored as obesity treatment

    A hormone released after eating in people without obesity helps to suppress appetite, providing preliminary evidence that it may have potential as a treatment for obesity.

  5. Tracing cell-cell contacts

    New technology tracks the interactions between different cells using fluorescent labels that leave a glowing trail.

  6. How to block an ion channel

    A light-sensitive molecule that blocks ion channels could help to better understand glutamate signaling in the brain.

  7. In the belly of the beast

    To directly extract energy from the sun, sea slugs steal and protect specific cell components from the algae they feed on.

  8. Social hierarchies, sex, and stress

    Social hierarchies and sex may play an important role in how individuals respond to chronic stress.
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