This Magazine

Progressive politics, ideas & culture

Menu

contamination

Weed killing toxin makes mothers out of male frogs

luke champion

Atrazine, a controversial herbicide ubiquitous in Canadian cornfields has been found to chemically castrate male frogs, turning them into egg laying females. The Globe and Mail reported yesterday that when scientists at the University of California Berkley exposed male African clawed frogs to minute amounts of the toxin, just 2.5 parts per billion,the mutation occurred. Of […] More »