exposed to many of the modernities mainstream agricultural populations possess and use such as cell phones, televisions, radio, processed foods, etc. The political system of the Mamanwa is informally democratic and age-structured. Elders are respected and are expected to maintain peace and order within the tribe. The chieftain called a Tambayon, usually takes over the duties of counseling tribal members, speaking at gatherings, and arbitrating disagreements. The chieftain may be a man or a woman, which is characteristic of other gender-egalitarian hunter-gatherer societies. They believe in a collection of spirits, which are governed by the supreme deity Magbabaya, although it appears that their contact with monotheist communities/populations has made a considerable impact on the Mamanwa's religious practices. The tribe produces excellent winnowing baskets, rattan hammocks, and other household containers. Mamanwa (also spelled Mamanoa) means 'first forest dwellers', from the words man (first) and banwa (forest). They speak the Mamanwa language (or Minamanwa). They are genetically related to the Denisovans. Mandaya "Mandaya" derives from "man" meaning "first," and "daya" meaning "upstream" or "upper portion of a river," and therefore means "the first people upstream". It refers to a number of groups found along the mountain ranges of Davao Oriental, as well as to their customs, language, and beliefs. The Mandaya are also found in Compostela and New Bataan in Compostela Valley (formerly a part of Davao del Norte Province). Manobo Manobo is the hispanicized spelling of the endonym Manuvu (also spelled Menuvu or Minuvu). Its etymology is unclear; in its current form, it means "person" or "people." It is believed that it is derived from the rootword tuvu, which means "to grow"/"growth" (thus Man[t]uvu would be "[native]-grown" or "aboriginal"). The Manobo are probably the most diverse ethnic groups of the Philippines in the relationships and names of the groups that belong to this family of languages. The total current Manobo population is not known, although they occupy core areas from Sarangani island into the Mindanao mainland in the regions of Agusan, Davao, Bukidnon, Surigao, Misamis, and Cotabato. A study by the journal NCCP-PACT put their population in 1988 at around 250,000. The groups occupy such a wide area of distribution that localized groups have assumed the character of distinctiveness as a separate ethnic grouping such as the Bagobo or the Higaonon, and the Atta. Depending on specific linguistic points of view, the membership of a dialect with a supergroup shifts. The