10. Electric Eel
It’s no secret that electric eels stun their prey—accounts of such occurrences date back centuries. But unless you work security on the starship Enterprise, “stun” is a vague term. What really happens when these creatures attack? Until recently, biologists knew surprisingly little about the electric eel’s superpower. I was not planning to study this phenomenon, and I certainly never imagined I would offer an eel my arm in the name of science, as I eventually did.
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