Researchers have found that fish living downstream from a wastewater treatment plant showed changes to their normal behavior --- ones that made them vulnerable to predator --- when exposed to elevated levels of antidepressant drugs in the water

Source: McMaster University. https://www.sciencedaily.com/releases/2017/12/171205092134.htmhttps://www.sciencedaily.com/releases/2017/12/171205092134.htm