His research has shown that atrazine can cause significant harm to amphibians, including:
* Sex reversal in male frogs
* Reduced fertility
* Developmental abnormalities
* Endocrine disruption
Hayes's work has been groundbreaking in raising awareness about the potential environmental and health risks of atrazine. His research has been highly controversial, particularly with the agrochemical industry, which disputes some of his findings.
Here's a summary of his contributions:
* Pioneering research on atrazine's effects on amphibians
* Highlighting the potential risks of pesticides to wildlife and human health
* Advocating for stricter regulations on pesticide use
* Sparking debate and raising awareness about environmental issues
While his work has faced scrutiny and criticism, Hayes's research has been instrumental in shaping the understanding of the impact of pesticides on ecosystems and has motivated efforts to protect amphibian populations and public health.