Linked from
The 17 pages that link to Papuan languages, each with the reason it gives.
New Guinea HighlandsRelated: The highlands contain much of the island’s Papuan linguistic diversity.
Papuan peoplesRelated: These languages are a major, though not universal, marker of Papuan identity.
Mamberamo RiverRelated: The basin lies within a region of exceptional linguistic diversity.
Papuan PeninsulaRelated: They are spoken across parts of the peninsula’s varied communities.