The dogcow, named Clarus, is a bitmapped image designed by Apple for the demonstration of page layout in the classic Mac OS. The sound she makes is "Moof!", a portmanteau of "moo" and "woof". Clarus became the archetype of surrealistic humor in the corporate culture of the original Macintosh group, particularly as the mascot of Appleās Developer Technical Support as officially documented in Technote #31.