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BerdDad t1_iz2fptv wrote

Cats don't do much but cause rats to hide better (so we perceive them as being "gone"), but the rats they do kill may be infected with toxo as toxo causes rats to lose their fear of cats (they become attracted to cat urine).
https://www.smithsonianmag.com/smart-news/cats-are-surprisingly-ineffective-keeping-urban-rat-populations-check-180970428/

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