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YouTubeDeep Look
Porcupines Give You 30,000 Reasons to Back Off | Deep Look
Porcupines may be adorable, but their quills are razor-sharp, designed to impale and next to impossible to remove. But it's not all bad news. Researchers are designing new surgical staples that mimic the quill's shape to better close wounds and promote healing. Check out PBS Sound Field! https://www.youtube.com/channel/UCvMLMyKPomE6kTTL9Kv8Iww ...
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