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News stories tagged with "quill"

Natural Selections: Porcupine Quills

While the porcupine quill is hollow, like a feather, and is made from the same material, it is actually a modified hair. African porcupines can weigh as much as 60 pounds and have quills as thick as soda straws. Martha Foley and Dr. Curt Stager talk about "prickly" matters.  Go to full article

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