Washington Post: Papua New Guinea is the second largest island in the world. It is inhabited by diverse tribes that depend on nature to provide them with food and medicine. In ecological terms, the island has a rich array of botanical and animal species. Medicinal plants, which many natives use for traditional healing methods, are spread across the forest. Kangaroos, cassowaries, birds of paradise, cockatoos and crocodile are among the species. Yet, as in the other parts of the world, global industry has started...