SEM of a Porcupine Quill

SEM of a Porcupine Quill

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Credit: EDWARD KINSMAN/SCIENCE PHOTO LIBRARY

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Caption: SEM of a Porcupine Quill. This is a quill from a porcupine. (Erethizon dorsatum) The quill is designed to stick into the skin of a predator and not be easily removed. This is an effective defensive mechanism for the porcupine. False color Scanning Electron Micrograph (SEM).

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Keywords: animal, arrow, barb, barbed, canadian porcupine, common porcupine, erethizon, erethizon dorsatum, erethizon sp., erethizontidae, fauna, mammal, microscopy, north american porcupine, porcupine, porcupine quill, quill, rodent, rodentia, scanning electron micrograph, scanning electron micrographs, scanning electron microscopy, sem, sems

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