Lemmings do not engage in mass suicidal dives off cliffs when migrating. The scenes of lemming suicides in the 1958 Disney documentary film White Wilderness, which popularized this idea, were completely fabricated. The lemmings in the film were actually purchased from Inuit children, transported to the filming location in Canada and repeatedly shoved off a nearby cliff by the filmmakers to create the illusion of a mass suicide.[448][449] The misconception itself is much older, dating back to at least the late 19th century, though its exact origins are uncertain.[450][448]

Hmm, humanity sure has great ideas!