The Monkey Suit

Melanie Griffith as herself
Larry Hagman as Wallace Brady

"The Monkey Suit" is the twenty-first episode of the seventeenth season of the American animated sitcom The Simpsons. It originally aired on the Fox network in the United States on May 14, 2006. In the episode, Ned Flanders is shocked after seeing a new display at the museum about evolution. Together with Reverend Lovejoy, he spreads the religious belief of creationism in Springfield, and at a later town meeting, teaching evolution is made illegal. As a result, Lisa decides to hold secret classes for people interested in evolution. However, she is quickly arrested and a trial against her is initiated.

J. Stewart Burns wrote "The Monkey Suit", for which he received inspiration from the 1925 Scopes Monkey Trial. The episode features a few references to this legal case, as well as several references to popular culture. Many analysts have commented on the episode's treatment of the creation–evolution controversy, a dispute about the origin of humanity between those who support a creationist view based upon their religious beliefs, versus those who accept evolution, as supported by scientific evidence.

Critics have given the episode generally positive reviews, praising it for its satire of the creation–evolution debate. "The Monkey Suit" has won an award from the Independent Investigations Group (IIG) for being "one of those rare shows in the media that encourage science, critical thinking, and ridicule those shows that peddle pseudoscience and superstition." In 2007, a scene from the episode was highlighted in the scientific journal Nature.