Remember Charlie the Tuna from those commercials? Charlie was constantly trying to finagle a way to be selected for processing (why he would want to be filleted and canned is another question). Today, it turns out scientists are working on a way to turn fish — and not just tunas — into Charlies eager to get caught, gutted and IQF'd. The strategy is based on conditioning them with a Pavlovian response to a sound they associate with food. Scientists would play the sound just before releasing ...

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