Koko the sign-language communicating gorilla has been the subject of several claims of sexual harassment -- all focusing on the ape's apparent "nipple fetish."
Three women claimed that they were pressured by Koko's handler, Francene Patterson, to lift their shirts and expose their nipples to the gorilla. They claimed they were in danger of losing their jobs if they did not comply with what Patterson claimed was Koko's signal to expose their nipples.
All sexual harassment claims against Koko were dropped in 2005. Patterson claims that Koko merely uses the word "nipple" to refer to humans because it sounds like that for "people."