It involves shamanism, animism, totemism and ancestor worship. Local religion preserves aspects of natural beliefs such as totemism, animism, and shamanism. "The Horror of Incest" concerns incest taboos adopted by societies believing in totemism. In "Taboo and emotional ambivalence," Freud considers the relationship of taboos to totemism. Durkheim saw totemism as the original and simplest form of religion. Freud explains religion in a similar term to that of totemism. He based his view on recent research regarding totemism among the Australian aboriginals. Traces of totemism still survive in their reverence for the red-backed heron. Byamee is the originator of things less archaic and important than totemism. Mo exhibits totemism and the cult of reproduction. Like Franz Boas, he was skeptical that totemism could be described in any unified way. Lang examined the origins of totemism in "Social Origins" (1903). His typologies of totemism included eight "forms" and six "functions". In the spring of 1926 Tokarev presented a report on Australian totemism. Freud examines the system of Totemism among the Australian Aborigines.