Dr. Richard Moriarty, creator of Mr. Yuk, shows his Mr. Yuk money clip at Carnegie Museum of Natural History, Botany Hall, Thursday, June 1, 2023, in Oakland, Pa. Moriarty passed away on Thursday, Sept. 7, according to Jeffrey Fugh of the funeral home John A. Freyvogel Sons Inc., which is handling arrangements in Pittsburgh. (John Colombo /Pittsburgh Post-Gazette via AP)

PITTSBURGH (AP) — A retired pediatrician from Pittsburgh who helped create the ‘Mr. Yuk’ poison warning for kids has died. Dr. Richard W. Moriarty was 83. The funeral home handling arrangements says he died Thursday. Moriarty was involved in establishing and developing the Pittsburgh Poison Center, where he served as director. He has said children in focus groups responded strongly to Mr. Yuk’s bright green color and upset face. He said in an interview that: “the Mr. Yuk symbol was designed by kids for kids.” The poison awareness campaign began in 1971.