@yogthos What I was implying. Dunno much about the net effect of GMO crops on human biology but I know the 'roundup ready' variety of corn grown for fuel ethanol and other industrial uses has an issue with creating pollen poisonous to butterfly larvae. It's killing off the butterflies that migrate over mexico where much of North America's supply is grown. Monarchs for example. Monsanto denied it but the U of New Mexico researchers stuck by their findings.