Tony Heald / Leopard walking along tree trunk. Namibia. Captive animal

Juan Carlos Munoz / Leopard (Panthera pardus) in sunlit grass, Samburu National Reserve, Kenya

Denis-Huot / Leopard (Panthera pardus) young male, portraits, Masai-Mara Game Reserve, Kenya

Denis-Huot / Leopard (Panthera pardus) young male portrait, Masai-Mara Game Reserve, Kenya

Laurent Geslin / Female African lion (Panthera leo) jumping in to the Khwai river, Okavango Delta, Moremi reserve, Botswana, sequence 2/5

Neil Aldridge / African Lion (Panthera leo) cub reaches for a moment of intimacy with its father, Northern Tuli Game Reserve, Botswana

Mark MacEwen / Lion (Panthera leo) male, in grassland, with wildebeests (Connochaetes sp) Maasai Mara (Masai Mara) Kenya, Africa

Denis-Huot / Lioness (Panthera leo)s from a pride, Masai-Mara Game Reserve, Kenya

Tony Heald / African elephant {Loxodonta africana}, close-up of eye, Chobe national park, Botswana

Tony Heald / African elephant {Loxodonta africana} charging, Etosha national park, Namibia.

Inaki Relanzon / Family of African elephants (Loxodonta africana), Masai Mara National Reserve, Kenya, Africa.

Ben Osborne / Aerial view of African elephant family (Loxodonta africana) traveling through parched landscape during drought conditions, Northern Botswana. Taken on location for BBC Planet Earth series, October 20...

Tony Heald / African Wild Dog (Lycaon pictus) pack passing infront of large African elephant (Loxodonta africana) Mana Pools National Park, Zimbabwe October 2012

Denis-Huot / African Elephant (Loxodonta africana) juvenile smelling the air. Masai-Mara Game Reserve, Kenya.

David Pattyn / African lioness (Panthera leo) head portrait, Kgalagadi Transfrontier Park, South Africa

Robin Chittenden / Little Bee-eater (Merops pusillus) Western Division, Gambia, February

Oriol Alamany / Male African lion (Panthera leo), Kruger National Park, Transvaal, South Africa, September.

Neil Aldridge / African wild dog (Lycaon pictus) on the banks of the Limpopo River, Northern Tuli Game Reserve, Botswana

Neil Aldridge / African wild dog (Lycaon pictus) looking at the camera on Mkhuze Game Reserve, KwaZulu-Natal, South Africa

Neil Aldridge / Common Zebra (Equus quagga) head detail portrait, Kruger National Park, South Africa

Staffan Widstrand / Common zebra (Equus quagga) profile portrait, Durban, South Africa

Tony Heald / Hippopotamus (Hippopotamus amphibius) ears flicking water when opening after surfacing, ~Mana Pools National Park, Zimbabwe, October 2012

Denis-Huot / African Elephant (Loxodonta africana) male and Mount Kilimanjaro. Amboseli National Park, Kenya.

Denis-Huot / African Elephant (Loxodonta africana) male and Mount Kilimanjaro. Amboseli National Park, Kenya.

Denis-Huot / African Elephant (Loxodonta africana) baby playing with its mother. Masai-Mara Game Reserve, Kenya.

Denis-Huot / African Elephant (Loxodonta africana) portrait. Tsavo East National Park, Kenya.

Denis-Huot / African Elephant (Loxodonta africana) mother and calf. Masai-Mara Game Reserve, Kenya.

Denis-Huot / African Elephant (Loxodonta africana) mother and its two babies at dusk. Amboseli National Park, Kenya.

Ann & Steve Toon / African elephants (Loxodonta africana) large family group on migration, Amboseli National Park, Kenya

Ann & Steve Toon / African elephant (Loxodonta africana) herd walking to the river to drink, Masai Mara Game Reserve, Kenya

Neil Aldridge / Meerkat (Suricata suricatta) standing to survey its territory on the edge of Makgadikgadi Pans National Park, Botswana, April.

Neil Aldridge / Portrait of a meerkat (Suricata suricatta) or suricate, looking at the camera and standing to survey its territory on the edge of Makgadikgadi Pans National Park, Botswana, April.

Mark MacEwen / The Grey Crowned Crane (Balearica regulorum) Ol Pejeta Conservancy, Kenya, Africa.

Denis-Huot / Wildebeest (Connochaetes taurinus) crossing the Mara river, Masai-Mara game reserve, Kenya

Denis-Huot / Cheetah (Acinonyx jubatus) mother and cubs aged 2/3 months, Masai-Mara Game Reserve, Kenya. Vulnerable species.

Denis-Huot / Cheetah (Acinonyx jubatus) cubs aged 2/3 months climbing on dead tree stump, Masai-Mara Game Reserve, Kenya. Vulnerable species.

Denis-Huot / Cheetah (Acinonyx jubatus) juvenile, Masai-Mara Game Reserve, Kenya. Vulnerable species.

Denis-Huot,Denis-Huot / Topi (Damaliscus korrigum) at sunset, Masai-Mara Game Reserve, Kenya

Juan Carlos Munoz,Juan Carlos Munoz / Lesser flamingo (Phoeniconaias minor) flock in lake Nakuru, Kenya

Juan Carlos Munoz / Lesser flamingo (Phoeniconaias minor) flock feeding in lake Nakuru, Kenya

Denis-Huot / Lion (Panthera leo) male shaking water from its mane after rain, Masai-Mara Game Reserve, Kenya. Vulnerable species.

Denis-Huot / Grant's zebra (Equus burchelli boehmi) males, Masai-Mara Game Reserve

Denis-Huot / Grant's zebra (Equus burchelli boehmi) Masai-Mara Game Reserve, Kenya

Denis-Huot / Grant's zebra (Equus burchelli boehmi) herd, Masai-Mara Game Reserve, Kenya

Ben Cranke / Springbok (Antidorcas marsupialis) herd, Kgalagadi Transfrontier Park, South Africa

Nick Garbutt / Golden-crowned Sifaka or Tattersall's Sifaka (Propithecus tattersalli) climbing down tree in forests near Andranotsimaty, Daraina, north east Madagascar. Critically Endangered.

Denis-Huot / Greater kudu (Tragelaphus strepsiceros) male, Chobe National Park, Savuti area, Botswana

Denis-Huot / Ostrich (Struthio camelus) female, head portrait, Masai-Mara Game Reserve, Kenya

Denis-Huot / Leopard (Panthera pardus) resting, Masai-Mara Game Reserve, Kenya

Denis-Huot / Lionesses (Panthera leo) grooming each other, Masai-Mara Game Reserve, Kenya

Andy Rouse / Portrait of African Leopard (Panthera pardus) 'Lorian'. Masai Mara, Kenya.

Denis-Huot / Crowned crane (Balearica regulorum gibbericeps) portrait, Masai-Mara Game Reserve, Kenya

Denis-Huot,Denis-Huot / Greater flamingos (Phoenicopterus ruber roseus) males displaying, lake Nakuru, Kenya

Denis-Huot / African jacana (Actophilornis africanus) walking on Water Lettuce (Pistia stratiotes) Masai-Mara Game Reserve, Kenya

Christophe Courteau / Pack of African wild dogs (Lycaon pictus), Mala Mala Game Reserve, South Africa, June.

Juan Carlos Munoz / Herd of Impala (Aepyceros melampus) silhouetted at sunset, Ngorongoro Conservation Area, Tanzania.

Juan Carlos Munoz / Blue wildebeest (Connochaetes taurinus) silhouetted at sunset, Serengeti National Park, Tanzania.

Ann & Steve Toon / Hartmann's mountain zebra, (Equus zebra hartmannae), Kunene region, Namibia, Africa, May

Solvin Zankl / Bat-eared fox (Otocyon megalotis) portrait, Namib-Naukluft National Park, Namib Desert, Namibia.

Solvin Zankl / Bat-eared fox (Otocyon megalotis) in habitat, Namib-Naukluft National Park, Namib Desert, Namibia.

Ann & Steve Toon / Male Black rhinoceros (Diceros bicornis), Phinda Private Game Reserve, Kwazulu Natal, South Africa, February.

Ann & Steve Toon / Meerkats (Suricata suricatta) standing alert, Kgalagadi Transfrontier Park, Northern Cape, South Africa, January.

Mark MacEwen / Male Lion (Panthera leo) 'Romeo' from marsh pride, Masai Mara, Kenya.

Mark MacEwen / Male Lion (Panthera leo) 'Romeo' in habitat, from the Marsh Pride, Masai Mara, Kenya.

Chris & Monique Fallows / Lessor Flamingo (Phoeniconaias minor) flock in flight over Strndfontein sewerage works, Cape Town, South Africa.

Eric Baccega / Crowned crane (Balearica regulorum) profile, Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / African fish eagle (Haliaeetus vocifer) fishing, Baringo lake, Kenya, Africa.

Eric Baccega / African elephant (Loxodonta africana) Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Savanna landscape wirh Grant's zebras (Equus quagga boehmi) and acacia trees, Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Female Gerenuk (Litocranius walleri) head portrait, Samburu National Reserve, Kenya, Africa.

Eric Baccega / Leopard (Panthera pardus) resting in acacia tree, Samburu National Reserve, Kenya, Africa.