In the interests of maintaining high scientific standards, I feel obligated to note that before the cold fusion
debacle, McConnell’s planaria study was the standard by which Bad Science
"McConnell's research program with planaria collapsed when other scientists failed to replicate the phenomenon of memory transfer." -- American Psychologist 51:589-598.
McConnell's results on transferred memories did not hold up.
A great discussion of the failure of McConnell's research can be found in The Making of Memory: From Molecules to Mind by Steven Rose (1993, ISBN 0385471211).