Culture of endangered(extra)

When most people refer to endangered species, they likely think of plants and animals. Certainly, in looking around major city filled with millions of people, it is indeed hard to believe that there are human cultures in danger of exthinction. However, as with endangered plants and animals, there are areas of the world that harbor aboriginal peoples who are at risk of losing centuries of evolved customs and even their ability to exist as a culture. Through thousands of years of total isolation these native fortresses have managed to avoid the influences of the industrialized world. Nevertheless, this is rapidly changing as the plague of economic growth creeps into indigenous homelands and threatens their ability to support their human inhabitants.