“Lemmings commit mass suicide by jumping off cliffs.”

The idea that lemmings intentionally hurl themselves off cliffs in a mass suicidal act is a widespread misconception, largely fueled by a 1958 Disney documentary. This film, titled "White Wilderness," famously depicted lemmings plunging to their deaths. However, investigations later revealed that the filmmakers staged these scenes, reportedly herding lemmings over a cliff to create dramatic footage. This cinematic manipulation played a significant role in cementing the myth in public consciousness.

In reality, lemmings do not commit suicide. These small rodents are known for their dramatic population fluctuations, which can lead to periods of extremely high density. During such times, they may embark on extensive migrations in search of new food sources and habitats. While migrating, large groups can encounter obstacles like cliffs or bodies of water. Due to their poor eyesight and the sheer number of animals moving together, individuals may accidentally fall off cliffs or drown while attempting to cross rivers or lakes, but these are accidental deaths, not intentional acts of self-destruction.

The enduring belief in lemming mass suicide can be attributed to the powerful visual impact of the Disney film and the human tendency to anthropomorphize animal behavior. The dramatic imagery of countless creatures seemingly sacrificing themselves created a compelling, albeit false, narrative that was easily absorbed and retold. Despite scientific evidence debunking the myth, its vivid and sensational nature has allowed it to persist as a common misconception about the animal kingdom.