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What could cause a mammal to have and respond to a sense of touch with only isolated numbness but not feel pain?

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CIPA? – Rory M Aug 6 '14 at 22:28
Loss of nociceptive pathways. – WYSIWYG Aug 7 '14 at 6:35
up vote 1 down vote accepted

I think Congenital insensitivity to pain with anhidrosis might be what you are looking for, it is the closest thing I can think of right now.

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Thank you this does somewhat make sense – user1357 Aug 6 '14 at 23:23

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