Tons of cat owners have Toxoplasma gondii, the common feline parasite. We've known for quite some time that T. gondii makes rats lose their fear of cats, making them more likely to be eaten. We've also known that the parasite causes humans to become more reckless, and in some cases hornier.
io9 · io9 staff
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io9 · Charlie Jane Anders
io9 Was Founded on the Idea That Science Fiction Belongs to Everyone
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