Active transmission of poison avoidance among rats?

Results of a recent study of Danguir and Nicolaidis suggest that pairs of rats trained to avoid ingesting LiCl solution will physically restrain naive conspecifics and actively interfere with the naive rats' ingestion of a similar-tasting NaCl solution. If confirmed, this result would be the first controlled demonstration of an active role of the transmitter of behavior in a social learning situation. Replication with more precise measure of …