Lemmings commit mass suicide
Lemmings do not commit mass suicide. This myth was widely spread by a fraudulent 1958 Disney nature documentary in which filmmakers physically threw lemmings off a cliff while staging a migration sequence. Actual lemming population dynamics involve periodic boom-and-bust cycles, not intentional self-destruction.
What we know
The lemming suicide myth became culturally entrenched largely through the 1958 Disney documentary White Wilderness, which purported to show lemmings hurling themselves off a cliff into the ocean. A 1983 investigation by Canadian Broadcasting Corporation producer Brian Vallee revealed the footage was staged: the documentary was filmed near Canmore, Alberta, a landlocked area where the species shown does not naturally live. Filmmakers purchased lemmings from local children, drove them across snow on turntables to simulate migration, and pushed them off the cliff.
Alaska Department of Fish and Game wildlife biologist Thomas McDonough described the suicide claim as a complete urban legend. Wildlife experts confirm that lemmings do not intentionally jump off cliffs. While lemming populations experience dramatic boom-and-bust cycles roughly every three to four years, driven by food availability and predation, this cyclical decline is caused by starvation, predation, and emigration, not self-directed death.
During population booms, lemmings may migrate in large numbers to find new food sources. These migrations can involve crossing rivers and other water bodies, and some individuals may drown during such crossings. This behavior, observed from a distance, may have contributed to the myth, but it is opportunistic dispersion, not suicide. The Alaska Department of Fish and Game confirmed that the answer to whether lemmings commit mass suicide is an unequivocal no.
Common claims
- Lemmings jump off cliffs in mass suicide eventsFalse - staged by Disney filmmakers
- Lemming populations crash due to self-destructionFalse - crashes caused by predation and food scarcity
- Lemmings migrate in large groupsTrue - but this is not suicide