both unnecessary (everyone can be expected to know what it is) and unimportant (as small differences in definition would be just technical). There are however dissenting views; scholars such as Pascal Boyer argue that defining tradition and developing theories about it are important to the discipline. Archaeology In archaeology, the term tradition is a set of cultures or industries which appear to develop on from one another over a period of time. The term is especially common in the study of American archaeology. Biology Biologists, when examining groups of non-humans, have observed repeated behaviors which are taught within communities from one generation to the next. Tradition is defined in biology as "a behavioral practice that is relatively enduring (i.e., is performed repeatedly over a period of time), that is shared among two or more members of a group, that depends in part on socially aided learning for its generation in new practitioners", and has been called a precursor to "culture" in the anthropological sense. Behavioral traditions have been observed in groups of fish, birds, and mammals. Groups of orangutans and chimpanzees, in particular, may display large numbers of behavioral traditions, and in chimpanzees, transfer of traditional behavior from one group to another (not just within a group) has been observed. Such behavioral traditions may have evolutionary significance, allowing adaptation at a faster rate than genetic change. Musicology and ethnomusicology In the field of musicology and ethnomusicology tradition refers to the belief systems, repertoire, techniques, style and culture that is passed down through subsequent generations. Tradition in music suggests a historical context with which one can perceive distinguishable patterns. Along with a sense of history, traditions have a fluidity that cause them to evolve and adapt over time. While both musicology and ethnomusicology are defined by being 'the scholarly study of music' they differ in their methodology and subject of research. 'Tradition, or traditions, can be presented as a context in which to study the work of a specific composer or as a part of a wide-ranging historical perspective.' Sociology The concept of tradition, in early sociological research (around the turn of the 19th and 20th century), referred to that of the traditional society, as contrasted by the more modern industrial society. This approach was most notably portrayed in Max Weber's concepts of traditional authority and modern rational-legal authority. In more modern works, One hundred years later, sociology sees tradition as