Teso Dos Bichos

List of season 3 episodes
List of The X-Files episodes

"Teso Dos Bichos" is the eighteenth episode of the third season of the science fiction television series The X-Files. It premiered on the Fox network on March 8, 1996. It was written by John Shiban, and directed by Kim Manners. The episode is a "Monster-of-the-Week" story, unconnected to the series' wider mythology. "Teso Dos Bichos" earned a Nielsen household rating of 10.7, being watched by 17.38 million people in its initial broadcast. The episode received mostly negative reviews.

The show centers on FBI special agents Fox Mulder (David Duchovny) and Dana Scully (Gillian Anderson) who work on cases linked to the paranormal, called X-Files. In this episode, Mulder and Scully investigate a series of deaths that occur immediately after an ancient artifact is brought to Boston from an excavation site in South America. According to Scully, the deaths appear to be the result of political terrorism, but Mulder suspects something more improbable.

The production for "Teso Dos Bichos", which was strongly disliked by the cast and crew of The X-Files, was plagued by several issues. Director Kim Manners, who had particular disdain for the episode, later made T-shirts and gave them to the cast and crew that read "Teso Dos Bichos Survivor." The episode's title translates from archaic Portuguese into English as "Burial Mound of Small Animals," although other translations have been proposed.