"Body Snatchers" refers to a science fiction concept popularized by the novel "The Body Snatchers" by Jack Finney, published in 1955. The story revolves around alien beings that replicate humans, taking over their bodies while leaving no trace of the original person. This theme explores issues of identity, conformity, and the fear of losing one's individuality. The concept has been adapted into several films, including the 1978 movie "Invasion of the Body Snatchers," which further popularized the idea. These adaptations often highlight societal paranoia and the struggle against an unseen enemy, making "Body Snatchers" a significant part of science fiction culture.