Rats Love Cats? Maybe, if Rats Infected With Parasite

While the smell of cat urine is normally a turn-off for rats, a group of Stanford University researchers found a certain group of rats was actually attracted to that same odor. Cat urine is naturally a warning to rats to stay away from an area where their natural predators may be lurking. But study rats infected by the parasite Toxoplasma gondii ("toxo" for short) didn't show that fear and, instead, parts of their brains associated with sexual arousal were activated. "Normally, we would expect...Full Story
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