THC and opiates in poppies basically are animal neurotransmitters, so I disagree. Their original function was probably to discourage animals from eating the pla

THC and opiates in poppies basically are animal neurotransmitters, so I disagree. Their original function was probably to discourage animals from eating the plant. Animals seems to have a reflex by which any drastic changes to brain function induce vomiting of and aversion to any food the animal just ate.