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David Attenborough journeys to the very heart of Africa, which is covered in dense tropical rainforest. Danger lurks in every shadow, but some animals thrive here.

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.

First shown: 9pm 16 Jan 2013
Available for 24 days Duration 60 mins