Professor Francis McGlone, now based at Unilever after an academic career where he carried out research into nerve response, says this is likely to be a deliberate "design".
"We believe this could be Mother Nature's way of ensuring that mixed messages are not sent to the brain when it is in use as a functional tool."
Inconsistency or Blind Design?
Above quote from BBC Article Scientists find 'pleasure nerves' suggests "Mother Nature" produces "deliberate 'design'".
... and they accuse Christians of believing a myth?