“Lemmings commit mass suicide by jumping off cliffs”

The enduring image of lemmings blindly rushing off cliffs to their demise is a dramatic misconception, largely cemented in popular culture by a 1958 Disney nature documentary. The film, "White Wilderness," which even won an Academy Award, presented staged footage of lemmings supposedly committing mass suicide. In reality, filmmakers deliberately pushed dozens of lemmings off a cliff and used camera tricks, like placing a small group on a turntable, to create the illusion of a vast, unthinking horde heading towards destruction.

The truth about these small Arctic rodents is far less sensational. Lemmings experience natural, cyclical population booms every few years. When their numbers swell and resources become scarce in one area, groups will embark on migrations to find new food sources and habitats. During these journeys, lemmings are capable swimmers and may attempt to cross bodies of water, such as rivers or lakes. While some individuals may accidentally drown from exhaustion or being swept away during these crossings, it is a tragic consequence of migration, not a deliberate act of self-destruction.

Despite the scientific evidence, the myth persists, primarily due to the powerful and widespread influence of the fabricated scenes in "White Wilderness." The documentary's portrayal was so convincing that it ingrained the idea of suicidal lemmings into the public consciousness. Furthermore, the notion of lemmings mindlessly following a crowd to catastrophe has become a popular metaphor for human behavior, which helps to keep this engaging but inaccurate story alive.