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Porcupine Barbs For Better Wound Healing

Surgeons would love to find a replacement for surgical staples — one that doesn’t aggravate wounds on the way in and out. Bioengineers think they’ve found the right model — a porcupine’s quill.

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Are Plastic Bag Bans Garbage?

A national movement to ban plastic bags is gaining steam, but these restrictions may actually hurt the environment more than help it. Human nature, hard truths, and what kind of bag to use anyway?