Second Nature is a long-form improvisational theatre troupe based in Los Angeles at the University of Southern California. Second Nature was founded on November 19, 2002. The troupe performs every Thursday night in USC's PED Building, providing free, comedic, one-hour shows. Second Nature regularly performs with other improv troupes from all over Los Angeles, and the United States. The collegiate troupe is known for the Fracas! Improv Festival, one of the largest intercollegiate improv comedy festivals in the world. Additionally, Second Nature pioneered The Facebook Show, an improvised comedy show based entirely on the Facebook profiles of audience volunteers. Since its debut, Second Nature has become a regular part of campus life at USC, and has begun the careers of several comedians, actors, and directors.