Graeme Guy/ BIA / African Lion (Panthera leo) female suffocating Blue Wildebeest (Connochaetes taurinus) prey, Masai Mara, Kenya

Richard Du Toit / Black Wildebeest (Connochaetes gnou), Rietvlei Nature Reserve, South Africa

Ingo Arndt / African Lion (Panthera leo) female feeding on Blue Wildebeest (Connochaetes taurinus) kill, Masai Mara, Kenya

Anup Shah / Blue Wildebeest (Connochaetes taurinus) herd crossing Mara River, Masai Mara, Kenya

Theo Allofs / Blue Wildebeest (Connochaetes taurinus) herd migrating through savanna, Masai Mara, Kenya

Richard Du Toit / Black wildebeest (Connochaetus gnou) bull silhouetted at dawn, Rietvlei Nature Reserve, Gauteng Province, South Africa.

Anup Shah / Burchell's Zebra (Equus burchellii) and Blue Wildebeest (Connochaetes taurinus) herd crossing river, Mara River, Masai Mara, Kenya

Richard Du Toit / Blue Wildebeest (Connochaetes taurinus) males sparring, Kgalagadi Transfrontier Park, South Africa

Richard Du Toit / Blue Wildebeest (Connochaetes taurinus) female running, Kalahari, South Africa

Suzi Eszterhas / Hot air balloon flying over wildebeest herd, Masai Mara Triangle, Kenya

Suzi Eszterhas / Blue Wildebeest (Connochaetes taurinus) mother and 1 to 3 days old calf running, Masai Mara, Kenya

Suzi Eszterhas / Blue Wildebeest (Connochaetes taurinus) bulls fighting, Masai Mara, Kenya