Environmental Physics,
A porcupine quill needs only about half the force of a hypodermic needle to be used properly, quills are also so hard to remove!
UF Microbiology and Cell Science,
There is so much to learn from nature......what do porcupine quills have to do with medicine? Original article: These findings…
Australian Science Media Centre,
A porcupine quill has a layer of backward facing barbs to make pricking easy but removal hard, says international study http://t.