Too Much Prozac Turns Minnows Into Killers

Fish swimming in water with a trace of the anti-depressant Prozac did not adopt a cheery disposition. Instead, they became edgy, aggressive and some even killed their mates.

The fish were subjected to traces of the drug by a research group at the University of Wisconsin-Milwaukee that examined how environmental exposure to the medication altered the behavior of fathead minnows, a common fish found throughout the Midwest.

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