> Many people incorrectly remember the name of the series as the "Berenstein Bears". This confusion has generated multiple explanations of the memories, including an unannounced name change, time travel, or parallel universes, and has been described as an instance of the Mandela effect.
According to Stan Berenstain's son, confusion over the name has existed since his father's childhood, when a teacher insisted that the name was spelled "Berenstein" due to the prevalence of names ending in "-stein".