Flea and tick treatments for dogs and cats may be harming wildlife

Roaming pets are ideal vectors for ticks, fleas and mites. Parasite treatments for pets contaminate the ecosystems.

"The findings suggest everyday pet treatments could ripple through ecosystems in surprising ways. After pets take these medications, the active compounds pass through their bodies and are excreted in feces."
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https://www.sciencedaily.com/releases/2026/02/260221000328.htm
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