John Sparks / David Attenborough with mountain gorillas, on location during filming for BBC 'Life on Earth' series in Rwanda 1978

Mark Payne-Gill / Three banded armadillo {Tolypeutes tricinctus} walking Captive, UK

Mark Payne-Gill / Three banded armadillo {Tolypeutes tricinctus} uncurling from defensive ball

Anup Shah / Western chimpanzee (Pan troglodytes verus) infant male 'Flanle' aged 3 years acting aggressively towards alpha male 'Foaf' aged 30 years, Bossou Forest, Mont Nimba, Guinea. January 2011. Sequence 4...

Anup Shah / Western chimpanzee (Pan troglodytes verus) infant male 'Flanle' aged 3 years wearing on his head a 'head support' used by villagers to carry heavy items made from palm leaves being chased by his mot...

Doc White / Blue Whales (Balaenoptera musculus) throat inflated, filter feeding at sea surface. California, USA. Sequence 1 of 2.

Sumio Harada / Black Bear (Ursus americanus) mother and cub near tree den, Glacier National Park, Montana

Ingo Arndt / Common Earthball (Scleroderma citrinum) emitting spores, Germany

Ingo Arndt / Common Earthball (Scleroderma citrinum) emitting spores, Germany

Mark Carwardine / Mark Carwardine and Douglas Adams on location for BBC radio series 'Last chance to see' in Robinson Crusoe's cave, Juan Fernandez Islands, Chile, December 1988

Mark Carwardine / Stephen Fry and Mark Carwardine with Brown lemurs on Lemur Island in Andasibe-Mantadia National Park, eastern Madagascar, while filming for BBC TV series 'Last Chance to See', November 2008

Mark Carwardine / Stephen Fry and Mark Carwadine after a mud bath in Borneo, filming for BBC TV series 'Last Chance to See', March 2009