Biocultural Diversity: Threatened species, endangered languages
http://d2ouvy59p0dg6k.cloudfront.net/downloads/biocultural_report__june_2014.pdf

It is common to think of nature and culture as being quite different. However, Biocultural Diversity: Threatened species, endangered languages, released by WWF Netherlands, shows that both nature and culture are the result of evolutionary processes and that they have evolved in similar ways.