Weedkiller atrazine castrates frogs – study

(Courier Mail) ONE of the most common weed killers in the world, atrazine, causes chemical castration in frogs and could be contributing to a worldwide decline in amphibian populations. Researchers compared 40 male control frogs with 40 male frogs reared from hatchlings until full sexual maturity, in atrazine concentrations similar to those experienced year-round in areas where the chemical is found. [..] "Atrazine exposure is highly correlated with low sperm count, poor semen quality and impaired fertility in humans,” the study said. Atrazine is widely used by farmers around the world as a weed- and grass-killer, particularly in production of corn, sorghum and sugar cane. read more

related: "Why Atrazine Must Be Banned" in Australia