Using the unique overhead heli-gimble camera the crew set out to film a pack of African wild dogs hunting in the Okavango Delta. It came down to the final hour of the final day of filming before they got the shot they wanted.

Over the course of three years the Planet Earth team tried to film the elusive Snow Leopard deep in the mountains of Pakistan. Their patience was eventually rewarded with the world's first footage of a Snow Leopard hunting.

Cameraman Peter Scoones is on a mission to film Piranha in the wetlands of Brazil. They are considered the most dangerous freshwater fish, but prove difficult to track down, until Peter finally finds himself immersed in a feeding frenzy.

The team spend a month amongst an enormous mound of bat guano in Gomantong Cave as they film the hundreds of thousands of cockroaches and other inhabitants that live there. The amazing Lechuguilla Cave of New Mexico provides a whole other set of challenges.

The Gobi desert is home to the last truly wild Bactrian camels and their fear of humans makes them extremely difficult to capture on film. After weeks of trying the crew were becoming frustrated, but their expert local tracker wouldn't let them down.