The Sangha Tri-National Landscape, known as TNS, is a UNESCO World Natural Heritage site since 2012, including Noubalé-Ndoki National Park in the Congo, the Lobéké National Park in Cameroon, and the Dzanga-Sangha Protected Areas in the Central African Republic.
Recent surveys found that it is home to 116 mammal species, 429 bird species, and 1122 plant species.