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Chris Packham travels to the world's great habitats to reveal how they actually work – despite the huge challenges that nature throws at them. With insight from recent scientific discoveries, Chris delves into complex and interdependent relationships to show why the termite needs the rhino, the shark needs the tiger and the lynx needs the caterpillar.
Travelling to the jungles of Borneo and the Amazon, he sees how relentless infestations of insects are responsible for creating the jungles. In Kenya he witnesses how rhinos and giraffes are nurturing and restoring the depleted grasslands. In the North American forests the whole ecosystem crashes and is reborn – and it's all down to a breathtaking feat of timing by its species.
Finally in South America, Bangladesh and the Maldives, Chris shows how the creatures and plants that live in the water work together in complex relationships to overcome the challenges of constant change and oxygen starvation.