A small group of people trekking through primary rainforest, Gunung Mulu National Park, Sarawak, island of Borneo, Malaysia, Asia

Mist rises from primary rainforest at dawn, Maliau Basin Conservation Area, Sabah, Borneo, Malaysia, Southeast Asia, Asia

Mist rises from primary rainforest at dawn, Maliau Basin Conservation Area, Sabah, Borneo, Malaysia, Southeast Asia, Asia

Liana and vine shrouded dipterocarp tree in primary rainforest in the Maliau Basin Conservation Area, Sabah, Borneo, Malaysia, Southeast Asia, Asia

Mist rises from primary rainforest at dawn, Maliau Basin Conservation Area, Sabah, Borneo, Malaysia, Southeast Asia, Asia

Tall dipterocarp trees in primary rainforest in the Maliau Basin Conservation Area, Sabah, Borneo, Malaysia, Southeast Asia, Asia

Playa Arco Beach and primary rainforest, Uvita, Marino Ballena National Park, Puntarenas Province, Pacific Coast of Costa Rica, Central America

Unidentified Bornean tree frog species found in primary rainforest, Danum Valley, Sabah, Borneo, Malaysia, Southeast Asia, Asia

Primary rainforest in the Andasibe-Mantadia National Park in eastern Madagascar, Madagascar, Africa

Primary rainforest in the Andasibe-Mantadia National Park in eastern Madagascar, Madagascar, Africa

Hiker, young woman walking along a trail in the jungle, Kuala Tahan, Taman Negara National Park, Malaysia, Asia

Hiker, young woman walking along a trail in the jungle, Kuala Tahan, Taman Negara National Park, Malaysia, Asia

Amazon River Basin Napo River (Amazon tributary) down river at La Selva Jungle Lodge naturalists on path through primary rainforest, Oriente, Ecuador

Amazon River Basin Napo River (Amazon tributary) down river at La Selva Jungle Lodge naturalists on path through primary rainforest, Oriente, Ecuador

Amazon River Basin Napo River (Amazon tributary) down river at La Selva Jungle Lodge naturalists crossing jungle stream in rainforest, Oriente, Ecuador

Amazon River Basin Napo River (Amazon tributary) down river from Coca at La Selva Jungle Lodge path through primary rainforest, Oriente, Ecuador

Amazon River Basin Napo River (Amazon tributary) down river from Coca indian in dugout canoe in primary, uncut jungle rainforest, Oriente, Ecuador

Amazon Basin, Napo River (tributary) La Selva Jungle Lodge, naturalists in dugout canoe on jungle stream in primary rainforest, Amazon, Ecuador

Amazon Basin, Napo River (tributary) La Selva Jungle Lodge, naturalists in dugout canoe on jungle stream in primary rainforest, Amazon, Ecuador

Amazon River Basin Napo River (Amazon tributary) down river from Coca an indian in a dugout canoe in primary rainforest at sunrise, Oriente, Ecuador

Amazon River Basin Napo River (Amazon tributary) down river from Coca indian in dugout canoe in primary, uncut jungle rainforest, Oriente, Ecuador