This criterion is vital. It points out how human norms and conventions differ from your ritualised behaviours located in nonhuman primates. Finally, it can be crucial to understand that beadwork may perhaps (Despite the fact that obviously minimal) be studied without the precise beads current! Some illustrations are provided within https://african-beadwork75295.blogdon.net/murano-glass-beads-can-be-fun-for-anyone-47295585