Biology
How Environmental Contaminants Disrupt Amphibian Endocrine Systems
Quick fact
In 2010, male frogs exposed to the common herbicide atrazine in the wild were found with eggs in their testes at rates ten times higher than control sites—a direct sign of endocrine disruption.
Why this is interesting
Imagine a pond where male frogs are turning into females and tadpoles never mature. Could invisible chemicals in the water be rewriting the rules of amphibian life?