
African clawed frog (Photo: Columbia University)
Blame lawns. And Big Ag. A new study looking at the effects of the common pesticide atrazine has found that it emasculated three-quarters of the male frogs exposed to the chemical.
It turned one in ten of the male frogs into females.
The study suggests that a key reason for the vast worldwide decline of frogs could be their exposure to atrazine and similar pesticides. “The 75 percent that are chemically castrated are essentially ‘dead’ because of their inability to reproduce in the wild,” says Dr. Tyrone B. Hayes, a University of California-Berkeley professor and lead researcher of the study.












