Animal testing on non-human primates between the monkeys natural behaviors versus the behaviors expressed by the diazepam induced monkeys in thirteen different locations inside the maze. Scientist Barros and his colleagues created this model to allow the monkeys to roam a less confined environment and slightly eliminate outside factors that may induce stress. Many of the best-known allegations of abuse made by animal protection or animal rights groups against animal-testing facilities involve NHPs. The so-called "pit of despair" was used in experiments conducted on rhesus macaque monkeys during the 1970s by American comparative psychologist Harry Harlow at the University of Wisconsin–Madison.<ref name="Blum1994/95">Blum, Deborah. "The Monkey
Ack-Ack Macaque Ack-Ack Macaque Ack-Ack Macaque is a science fiction novel by English writer Gareth L. Powell. "Ack-Ack Macaque" is based on Powell's earlier short story of the same name, which won the "Interzone" reader's poll in 2007. The original short story is included as an appendix to the novel. The novel has aspects of alternate history as in this version of reality the United Kingdom and France merged in the 1950s to form the nation of Brittany. The macaque of the title is the star of a highly regarded, exclusive massively multiplayer online role-playing game (with the roguelike feature of character