Angela Scott / 'Zawadi' leopard on watch up on rocks {Panthera pardus} Masai Mara NR, Kenya, East Africa. BIG CAT DIARY

Angela Scott / Jonathan Scott, presenter, with camerman watches lion pride feeding from landrover, Masai Mara NR, Kenya. BIG CAT DIARY 2000

Angela Scott / 'Amber' and her three cheetah cubs at rest on termite mound {Acinonyx jubatus} Masai Mara NR, Kenya, E Africa. BIG CAT DIARY 1999

Angela Scott / Portrait of female Cheetah 'Amber' {Acinonyx jubatus} Masai Mara NR, Kenya, East Africa - BIG CAT DIARY 1999

Suzi Eszterhas / Brown throated Three-toed Sloth (Bradypus variegatus) having 'daily diary' transmitter attached by research student, Rebecca Cliffe, Aviarios Sloth Sanctuary, Costa Rica. Model released

Andy Rouse / Rear view of Cheetah (Acinonyx jubatus) known as Kike (featured in the BBC Big Cat Diary) on bonnet of safari vehicle, Masai Mara, Kenya (non-ex)

Andy Rouse / Female Cheetah (Acinonyx jubatus) known as Kike, who was featured in the BBC Big Cat Diary series, on a car, Masai Mara, Kenya

Andy Rouse / Female Cheetah (Acinonyx jubatus) known as Kike, featured in the BBC Big Cat Diary, standing on hind legs looking into safari vehicle, Masai Mara, Kenya

Marguerite Smits Van Oyen / Gavin Thurston and Chris Taylor filming Waarthog for BBC NHU 'Big Cat Diary', Masai Mara GR, Kenya

Marguerite Smits Van Oyen / Cheetah 'Queenie' sitting on safari vehicle during filming of BBC NHU 'Big Cat Diary', Masai Mara GR, Kenya

Marguerite Smits Van Oyen / Camerman Gavin Thurston filming Cheetah on top of vehicle for BBC NHU 'Big Cat Diary', Masai Mara GR, Kenya

Anup Shah / Film crew filming and sound recording for BBC NHU 'Big Cat Diary', Masai Mara GR, Kenya

Anup Shah / Film crew filming for BBC 'Big Cat Diary', Kenya, 1997

Angela Scott / Simon King with Amber's male cheetah (Acinonyx jubatus) cub. BIG CAT DIARY

Marguerite Smits Van Oyen / Leopard with Wildebeest kill. Masai Mara, Kenya. 'Safi' from Big Cat Diary 2000

Marguerite Smits Van Oyen / Leopard with Wildebeest kill, Masai Mara, Kenya. 'Safi' from Big Cat Diary 2000

Peter Blackwell / Leopard climbing down tree {Panthera pardus} Masai Mara NR, Kenya

Peter Blackwell / Leopard female Shadow carrying Warthog kill up tree. Masai Mara NR, Kenya Big Cat Diary

Peter Blackwell / Leopard female Shadow {Panthera pardus} with Warthog kill, Masai Mara NR, Kenya. Big Cat Diary

Marguerite Smits Van Oyen / Cheetah lying on jeep (Acinonyx jubatus) Masai Mara GR, Kenya

Angela Scott / "Solo" Lion cub profile {Panthera leo} Masai Mara NR, Kenya, East Africa - BIG CAT DIARY

Angela Scott / Sitting portrait of 'Zawadi' adult Leopard {Panthera pardus} Masai Mara NR, Kenya, East Africa. BIG CAT DIARY

Angela Scott / 'Zawadi' Leopard resting up in tree {Panthera pardus} Masai Mara NR, Kenya, East Africa. BIG CAT DIARY

Angela Scott / Jonathon Scott (left) and Simon King presenters of Big Cat Diary, Masai Mara NR Kenya 2000

Angela Scott / Jonathon Scott (left) and Simon King, presenters of Big Cat Diary, Masai Mara NR Kenya 2000

Angela Scott / Lioness suffocating buffalo prey {Panthera leo} Masai Mara NR, Kenya, East Africa.

Angela Scott / One of Amber's Cheetah cubs on alert {Acinonyx jubatus} Masai Mara NR, Kenya, E Africa. BIG CAT DIARY 1999

Angela Scott / Wildebeest about to cross Mara river {Connonchaetes taurinus} Masai Mara NR, Kenya, E Africa. BIG CAT DIARY 1999

Angela Scott / Female Leopard {Panthera pardus} "Shadow" sleeping in tree, Big Cat Diary, Masai Mara NR, Kenya.

Angela Scott / PFemale Leopard {Panthera pardus} "Shadow" sleeping in tree, Big Cat Diary, Masai Mara NR, Kenya.

Angela Scott / Marsh pride lion family at zebra kill {Panthera leo} Masai Mara NR, Kenya, East Africa. BIG CAT DIARY 1999

Angela Scott / Two Marsh lion cubs suckling {Panthera leo} Masai Mara NR, Kenya, East Africa

Angela Scott / Marsh lions male & female resting, zebra herd in background Masai Mara NR, Kenya, E Africa

Angela Scott / Cheetah cameraman for Big Cat Diary series filming one of Amber's cubs on vehicle bonnet (Acinonyx jubatus) Masai Mara NR, Kenya

Angela Scott / Simon King with African lion pride and cubs (Panthera leo) during Big Cat Diary series filming, Masai Mara NR, Kenya

Angela Scott / Male Cheetah cub on vehicle roof (Acinonyx jubatus) Masai Mara NR, Kenya. From 1999 Big Cat Diary series.

Angela Scott / Presenter Jonathan Scott with African lion (Panthera leo) from Marsh Pride, Masai Mara NR, Kenya 1999 BBC Big Cat Diary series

Keith Scholey / Leopard {Panthera pardus} 'Half Tail' on location for Big Cat Diary, Masai Mara NR, Kenya

Alastair Fothergill / Simon King and film crew on Big Cat Diary. Kenya 1997

Marguerite Smits Van Oyen / Leopard known as 'Half tail', Masai Mara, Kenya. One of the animals featured in BBC tv series 'Big Cat Diary'

Chris Taylor / Camerman Richard Matthews filming Cheetah (Fundi) with cubs, for Big Cat Diary, Masa Marai Kenya. 1990s

Alastair Fothergill / Martyn Colbeck, cameraman filming for BIG CAT DIARY 1996, Kenya

Anup Shah / Big Cat Diary team film wildebeest crossing Mara River September 1996

SIMON KING / Cheetah family (Acinonyx jubatus) resting on termite mound and BBC film crew in landrover, Masai Mara Game Reserve, Kenya, East Africa

Colin Monteath / Trekker writes in diary beside Tibetan tent, Photoskar village, Ladakh, Himalayas, northwest India

Peter Blackwell / Leopard resting in tree {Panthera pardus} Masai Mara NR Kenya

Peter Blackwell / Leopard female (Shadow) walking {Panthera pardus} Masai Mara NR Kenya Big Cat Diary

Peter Blackwell / Leopard female (Shadow) grooming {Panthera pardus} Masai Mara NR Kenya Big Cat Diary