The very heart of Africa is covered in dense tropical rainforest. The animals that live here find the most ingenious ways to carve out their space in a claustrophobic landscape. Danger lurks in every shadow, but some animals thrive here, from honey-stealing chimps to birds with a lineage as old as the dinosaurs, thundering elephants and kick-boxing frogs. Here in the Congo, no matter how tough the competition, you must stand up and fight for yourself and your patch.
Bioluminescence: lighting up the natural world
Africa: Congo Q&A
The production team from David Attenborough's Africa series answer your Twitter and Facebook questions about Congo, episode three. The Q&A will start at 9pm tonight.
A taster from tonight's show
So many behaviours
Africa in all its glory