https://www.theguardian.com/environment/2018/sep/24/monsanto-weedkiller-harms-bees-research-finds

Hmm. :-\

«Harm to gut bacteria by glyphosate exposure has also been shown in a pilot study in rats. “Gut bacteria play a vital role in maintaining good health, in organisms as diverse as bees and humans,” said Goulson. “The finding that these bacteria are sensitive to the most widely used pesticide in the world is thus concerning.”»