Usually refers to the act of abducting a person and replacing him or her with an identical doppleganger, the ultimate goal being the creation of a race of pod people.

Popularized by the film Invasion of the Body Snatchers in 1956, the concept originated from the novel by author Jack Finney. The main signs of body snatching are out of character behavior and lack of emotion; also, the presence of alien seed pods is a dead giveaway.

See also: Robert A. Heinlein's The Puppet Masters. Similar to zombification, minus bits falling off.

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