Monsanto’s Roundup Herbicide as a Predator
According to a study Monsanto’s flagship weedkiller Roundup changes shape in ways that mimic tadpole’s reaction to predators. This weedkiller is by far the most-used herbicide on the planet. University of Pittsburgh ecologist Relyea stresses that what's likely causing the problem isn't Roundup's active ingredient, glyphosate. But actually, the surfactant Monsanto uses to penetrate plant tissues so that glyphosate can effectively kill weeds. Relyea found that in the tanks without predators, Roundup decimated the tadpole populations at concentrations of 3 milligrams per liter.