Islands. The expedition to film penguins on the remote island of Zavodovski was the most intrepid shoot of the series. 1/6. A behind-the-scenes look at the making of this epic BBC natural history series.

Islands. The expedition to film penguins on the remote island of Zavodovski was the most intrepid shoot of the series. 1/6. A behind-the-scenes look at the making of this epic BBC natural history series.

Mountains. The helicopter wildlife crew aimed to capture the hunting flights of eagles high in the mountains, but they had to go extreme paragliding to get an eagle's eye view. 2/6. A behind-the-scenes look at the making of this epic BBC natural history series.

Jungles. The team head to the Brazilian jungle to track down a newly discovered species of river dolphin, but spiders, aggressive red ants and torrential rain storms hamper their quest. 3/6. A behind-the-scenes look at the making of this epic BBC natural history series.

Deserts. Finding animals in the remote landscapes of Madagascar was always going to be challenging, but the team chase a huge swarm of locusts by car, helicopter and raft across the country. 4/6. A behind-the-scenes look at the making of this epic BBC natural history series.

Grasslands. The Grasslands team head to northeast India to capture intimate images of elusive creatures in the most dangerous national park on Earth: Kaziranga. 5/6. A behind-the-scenes look at the making of this epic BBC natural history series.

Deserts. Finding animals in the remote landscapes of Madagascar was always going to be challenging, but the team chase a huge swarm of locusts by car, helicopter and raft across the country. 4/6. A behind-the-scenes look at the making of this epic BBC natural history series.

Grasslands. The Grasslands team head to northeast India to capture intimate images of elusive creatures in the most dangerous national park on Earth: Kaziranga. 5/6. A behind-the-scenes look at the making of this epic BBC natural history series.

Cities. While one urban films the monkeys that live in the hustle and bustle of Jodhpur, Gordon Buchanan heads to Mumbai to film a leopard hunt in the heart of the city. 6/6. A behind-the-scenes look at the making of this epic BBC natural history series.

Islands. The expedition to film penguins on the remote island of Zavodovski was the most intrepid shoot of the series. 1/6. A behind-the-scenes look at the making of this epic BBC natural history series.

Islands. The expedition to film penguins on the remote island of Zavodovski was the most intrepid shoot of the series. 1/6. A behind-the-scenes look at the making of this epic BBC natural history series.

Grasslands. The Grasslands team head to northeast India to capture intimate images of elusive creatures in the most dangerous national park on Earth: Kaziranga. 5/6. A behind-the-scenes look at the making of this epic BBC natural history series.