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Microstructured barbs on the North American porcupine quill enable

Learning from a porcupine's quills, Science Wire

Microscopy and development of a remarkable pitted quill from the

Solved Barbed quills inspired by porcupine quills have

Inspiration from a porcupine's quills, MIT News

Do Porcupines Shoot Their Quills? (Fact Check) 4 Defense Behaviors

Curious Nature: Dispelling myths about common wildlife on April

Veterinary Sciences, Free Full-Text

More Than Sharp: The Science of Porcupine Quills

Could a porcupine quill be fashioned into a needle to administer