Parfait, thank you for your comment. According to Wikipedia, Papua New Guinea has 852 languages (12 now lost) for 7 million inhabitants. Nigeria has over 500 languages and tribes. Papua New Guinea does, indeed, have greater language diversity than Nigeria. The Christian Monitor reports a study by SIL whi
ch indicates that Papua New wins the prize for linguistic diversity. Of the top 10 countries for linguistic diversity 3 are in Oceania
and 7 are in Africa, which has a total of 2,000 different languages. To see detailed charts google "Ethnologue" and search for summary by country.