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Spiders

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Spiders castrate themselves to be better fighters
New study finds that voluntary castration allows spiders to be more aggressive, agile, and have better endurance.
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Science news: If you were a spider you might self-castrate, too
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Spiders

A botched attempt to escape. A male Nephilengys malabarensis snapped off his genitals (red box) in the female, but was eaten anyway.

JOELYN OH / from REF 1/Nature
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