Lemmings

Lemming populations are famous for their dramatic fluctuations, often peaking every 3 to 5 years. These "lemming years" are crucial for the Arctic environment:

are lemming population cycles changing due to winter climate? Lemmings

: In winter, they live in extensive tunnel systems beneath the snow, which provides insulation and protection from predators. : They have flattened claws on their front

: They have flattened claws on their front feet specifically designed for digging through snow and frozen ground. This misconception was largely popularized by the 1958

: As herbivores, they feed on mosses, grasses, shoots, and roots. The Infamous "Suicide" Myth

One of the most persistent biological myths is that lemmings commit mass suicide by jumping off cliffs. This misconception was largely popularized by the 1958 Disney documentary , which staged a "death march" that never actually happens in nature.

In reality, lemmings exhibit when their populations become too dense. During these migrations, they may attempt to swim across large bodies of water; while they are capable swimmers, many drown due to exhaustion or panic, which observers historically misinterpreted as intentional suicide. Population Cycles and Ecosystem Impact