Imperial pigeon (Ducula sp. nov.) A new species discovered in the Foja Mountains.

Tree mouse (Pogonomys sp. nov.) Likely new species, discovered by Kristofer Helgen of the Smithsonian Institution.

Harry Sutrisno of the Indonesian Institute of Sciences traps moths in the Foja Mountains.

Blossom bat (Syconycteris sp. nov.) A new species discovered in the “lost world” of the Foja Mountains of Papua New Guinea.

Gecko (Crytodactylus sp. nov.) New species discovered by Paul Oliver of Australia, with funding from the National Geographic Society.

Wallaby (Dorcopsulus sp. nov.) The world’s tiniest known member of the kangaroo family, discovered by Kristofer Helgen of the Smithsonian Institution.

Aerial view of Foja Mountains rainforest, on the Indonesian island of New Guinea.