My initial reaction was to look up lemmings; I have to admit, I don't know a lot about them. Thanks for making me learn something new. Lol. I would add that the world is filled with lemmings, and hopefully the cliff you're referring to is the PRECIPICE. Kek.

Britannica "...myth: Every few years, herds of lemmings commit mass suicide by jumping off seaside cliffs. Instinct, it is said, drives them to kill themselves whenever their population becomes unsustainably large.

Lemmings do not commit suicide. However, this particular myth is based on some actual lemming behaviors. Lemmings have large population booms every three or four years. When the concentration of lemmings becomes too high in one area, a large group will set out in search of a new home. Lemmings can swim, so if they reach a water obstacle, such as a river or lake, they may try to cross it. Inevitably, a few individuals drown. But it’s hardly suicide.

So why is the myth of mass lemming suicide so widely believed? For one, it provides an irresistible metaphor for human behavior. Someone who blindly follows a crowd—maybe even toward catastrophe—is called a lemming. Over the past century, the myth has been invoked to express modern anxieties about how individuality could be submerged and destroyed by mass phenomena, such as political movements or consumer culture. " https://www.britannica.com/story/do-lemmings-really-commit-mass-suicide