The baby North American porcupine was born is now on exhibit with its family at the Children's Zoo.
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It was born July 28 to Alice and Patrick, their third.
The newest addition does not yet have quills. At birth, porcupine quills are very soft. They begin to harden a few hours after birth and continue as the baby grows.
The quills of the North American porcupine have a tiny barb on the tip that can pull the quill from the porcupine's skin and painfully embed it in a predator.
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