Can learning be transferred chemically from one animal to another? Scientists have been arguing the question since 1962, when University of Michigan Psychologist James McConnell reported that untrained flatworms could acquire knowledge by feasting on trained worms. Using rats and mice, some researchers have achieved experimental results that seem to prove statistically that learning, or memory, can indeed be transferred by injecting the brain extract of one animal into the brain of another. But since the tests were difficult to duplicate, the results could never be properly validated. Now a Baylor University scientist, writing in Nature, has reported...
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