Detective Chimp is an intelligent chimpanzee. He is a master detective, and a member of the Shadowpact and the Croatoans. Originally a normal chimpanzee taken from Africa and raised as a circus act by Fred Thorpe, "Bobo the Detective Chimp" was transformed when he was exposed to the Fountain of Youth. After his master's death, he struck out on his own as a detective, and has since met other famous detectives such as John Jones, Ralph Dibny and Batman. Detective Chimp has a history with alcohol and tobacco. He has also been a member of the Justice League Dark. Detective Chimp was created by John Broome and Carmine Infantino, and first appeared in Adventures of Rex the Wonder Dog #4 (1952).