Congo has the largest concentration of primates in the world, and the forests are home to all three closest living relatives of humans: chimps, bonobos - pygmy chimps - and gorillas.
The BaAka pygmies of the Congo are the supreme naturalists of the rainforest. Yet they tell of a huge dinosaur-like creature with a single horn called Mokele Mbembe, which lives in the swamps of the Ndoki.
The safari begins with some startling revelations - some of the most primative fish in the world, a bizarre-looking bird the size of a man, and secret places where forest animal congregate.