Huh. Years ago, I remember reading that there were certain smells (present in poop and some foods) that would trigger the "scratch" reflex, and whether or not the food itself was appetizing was a completely separate thing. I don't know if that theory has fallen out of favor/been disproved... or just been supplanted on the intarwebz by "animal psychology" theories.
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2019-06-20 16:01 (UTC)