Thirty years later, WWF's Kate Newman returns to find signs of elephants, bonobos and more in Salonga National Park

As the second largest tropical forest park in the world, Salonga is a global treasure. It is home for bonobos and one of the last remaining habitats for the forest elephant. Now, a newly signed agreement brings together the Congolese Institute for Nature Conservation (ICCN) and WWF to co-manage the protected area.