In Indonesia’s Mentawai Islands, youths blend ancestral and world faiths to protect forests

Off the western coast of Sumatra, the Mentawai Islands rise from the Indian Ocean in a patchwork of emerald forests and winding rivers. The canopy shelters endemic macaques and gibbons, hornbills and orchids, while coastal villages still echo with rituals that tie people to the land and sea. Among the younger generation of Indigenous Mentawai, an ancestral belief system known as Arat Sabulungan continues to influence how forests are understood and used. The cosmology teaches that every tree, river and animal is alive with spirits whose balance must be honored. Although the influence of world religions is eroding these beliefs, researchers have found that Indigenous youths are balancing the two. Young islanders who grow up attending church services or mosque prayers still join their elders