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Flea and tick treatments for dogs and cats may be harming wildlife
General • February 22, 2026
Flea and tick medications
trusted by pet
owners worldwide may have an
unexpected environmental cost. Scientists found that active ingredients from isoxazoline treatments pass into pet feces, exposing dung-feeding insects to toxic chemicals. These insects are essential for nutrient cycling and soil health. The findings suggest everyday pet treatments could ripple through ecosystems in surprising ways.
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