News

  1. Health & Medicine

    Peptide puts mouse arthritis out of joint

    A compound called vasointestinal peptide, which binds to immune system T cells and macrophages, thwarts arthritis in mice.

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  2. Dolphins may seek selves in mirror images

    Dolphins apparently recognize their own reflections.

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  3. For some birds, Mr. Wrong can be alright

    What looks like the ultimate bad choice in romance—a mate from a different species—in some conditions may not be so dumb after all.

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  4. Astronomy

    Have scientists seen planets in the making?

    Astronomers may finally have glimpsed a key step in the construction of a planet.