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In This Issue
- Silk: Mimicking how spiders make their complex array of silks could usher in a tapestry of new materials, and other animals or plants could be designed to be the producers
- Itch: Scientists trace a new path behind the maddening, unrelenting, screaming desire to scratch
- Half-life (more or less): Physicists are stirred by claims that the sun may change what’s unchangeable—the rate of radioactive decay
- This week's table of contents
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HIDDEN STING
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A species of potter wasps carries mites on its body (the wasp body is black, the mites are yellow). Scientists have discovered that the mites, once thought to be parasites only, also act as bodyguards that defend developing wasps.
Credit: Kimiko Okabe
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