Farmed wetlands in southern Brazil left frogs with more blood-cell damage, and the aquatic species was hit hardest, hinting at a wider hidden cost of agriculture

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Wetlands in agricultural lands in southern Brazil might be silently harming frogs’ genes, with aquatic frogs being most affected, according to a recent peer-reviewed study published in Ecotoxicology. The scientists found that frogs living around intensively cultivated wetlands had a much larger number of abnormalities in their blood cells due to DNA damage than frogs living around natural wetlands. This suggests that modern agricultural practices may be affecting wildlife in ways that are not immediately visible.