Ann & Steve Toon / Impala (Aepyceros melampus) allo-grooming, iMfolozi game reserve, KwaZulu-Natal, South Africa, August

Guy Edwardes / Red-billed oxpecker (Buphagus erythrorhynchus) feeding on Impala (Aepyceros melampus), Savuti, Botswana.

Ann & Steve Toon / Impala (Aepyceros melampus) with redbilled oxpecker (Buphagus erythrorhynchus), Kruger National Park, South Africa.

Neil Aldridge / Two Impalas (Aepyceros melampus) ewes grooming each other in evening light on South Africa's Kruger National Park.

Chris & Monique Fallows / Impala (Aepyceros melampus) herd at dawn, Mana Pools National Park, Zimbabwe, October.

Klein & Hubert / Impalas (Aepyceros melampus) females drinking at water hole, Botswana.

Klein & Hubert / Impala (Aepyceros melampus) male running in rut, Botswana

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

Denis-Huot,Denis-Huot / Impala (Aepyceros melampus) herd in a storm, Masai-Mara Game Reserve, Kenya

Denis-Huot / Impala (Aepyceros melampus) female and calves, Masai-Mara game reserve, Kenya

Denis-Huot / Impala (Aepyceros melampus) male, Masai-Mara Game Reserve, Kenya

Tony Heald / Black faced Impala (Aepyceros melamis petersi) female jumping, Etosha National Park, Namibia

Tony Heald / Black faced Impala (Aepyceros melamis petersi) female jumping, Etosha National Park, Namibia

Andy Rouse / Impala (Aepyceros melampus) male jumping during rut. Masai Mara, Kenya, Africa.

Mary McDonald / Impala (Aepyceros melampus) mother grooming her newborn foal in rain. Lake Nakuru National Park, Kenya, East Africa.

Sharon Heald / Black-faced Impala (Aepyceros melamis petersi) male standing in a field of Devil's Thorn flowers (Tribulus terrestris). Etosha National Park, Namibia, January.

Anup Shah / Impala (Aepyceros melampus) female running Masai Mara National Reserve, Kenya. March

Anup Shah / Impala herd (Aepyceros melampus) huddled together in the rain, Masai Mara National Reserve, Kenya. April

Anup Shah / Impala herd (Aepyceros melampus) and female with suckling fawn in late afternoon rain, Masai Mara National Reserve, Kenya. March.

Patricio Robles Gil / Six young Impala {Aepyceros melampus} running down road in Kruger NP, South Africa

Anup Shah / Male Impala running (Aepyceros melampus) Masai Mara National Reserve, Kenya. March

Anup Shah / Herd of Impala in rain storm {Aepyceros melampus} Masai Mara, Kenya

Richard Du Toit / Two male Impala silhouetted against sunset sky {Aepyceros melampus} Laikipia, Kenya

Richard Du Toit / Impala (Aepyceros melampus) mutual grooming, Chobe NP, Botswana (This image may be licensed either as rights managed or royalty free.)

Anup Shah / Impala mother and baby, head to head {Aepyceros melampus} Masai Mara, Kenya

Pete Oxford / Two male Impala at dawn {Aepyceros melampus} Okavango Delta, Botswana

Tony Heald / Black face impala portrait {Aepyceros melampus petersi} Etosha NP, Namibia

Anup Shah / Impala males {Aepyceros melampus} greeting Masai Mara, Kenya, East-Africa

Anup Shah / Head profile of male Impala {Aepyceros melampus}, Samburu National Reserve, Kenya

Richard Du Toit / Impala female running, Mala Mala Game Reserve, South Africa

Anup Shah / Male Impala silhouetted against sky at sunset {Aepyceros melampus} Masai Mara Game Reserve, Kenya

Anup Shah / Impala (Aepyceros melampus) chewing with Oxpecker bird hunting for insects. Masai Mara NR, Kenya, East Africa

Peter Blackwell / Impala male {Aepyceros melampus} at sunrise, Maasai Mara, Kenya, East Africa

Pete Oxford / Impala (Apyceros melampus) female and african elephant (Loxodonta africana). Chobe National Park, Botswana, Southern Africa

Richard Du Toit / Impala with Red billed oxpecker on back, Kruger NP, South Africa

Pete Oxford / Impala (Aepyceros melampus). Savuti, Botswana, Southern-Africa

Richard Du Toit / Male Impala running in Kruger National Park, South Africa. Impala can run at speeds of 50mph!

Richard Du Toit / Impala (Aepyceros melampus) with Red billed oxpecker (Buphagus erythorhynchus) searching for insects, Kruger NP, South Africa

Anup Shah / Imapla with young fawn, East Africa

Tony Heald / Impala with Oxpeckers. Kruger National Park, South Africa

Richard Du Toit / Red-billed Oxpecker (Buphagus erythrorhynchus) on Impala (Aepyceros melampus) male, Kruger National Park, South Africa

Richard Du Toit / Impala (Aepyceros melampus) males fighting, Mkhuze Game Reserve, KwaZulu-Natal, South Africa

Sebastian Kennerknecht / Leopard (Panthera pardus) female feeding on sub-adult male Impala (Aepyceros melampus) prey in tree, Greater Makalali Private Game Reserve, South Africa

Richard Du Toit / Impala (Aepyceros melampus) male with Red-billed Oxpecker (Buphagus erythrorhynchus) pair, Kruger National Park, South Africa

Heini Wehrle / Red-billed Oxpecker (Buphagus erythrorhynchus) pair searching for parasites on Impala, Mpumalanga, South Africa

Sergey Gorshkov / Impala (Aepyceros melampus) herd running, Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus) sub-adult with Impala (Aepyceros melampus) kill in tree, Sabi-sands Game Reserve, South Africa

Richard Du Toit / Impala (Aepyceros melampus) female jumping, Chobe National Park, Botswana