Echidna quills

The quills were intact, sharp and all neatly facing the same way. I did not examine the scats in detail to determine if there was any blood.
This ability of the canine bowel was also demonstrated in a photograph of an X-ray (I think it was in a Veterinary Surgery text) showing 23 (?) thumb tacks all carefully aligned, with rounded end facing distally, in the intestines of a Dachshund.

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