Mitsuaki Iwago / Blue Wildebeest (Connochaetes taurinus) mother giving birth, Serengeti

Mitsuaki Iwago / African Lion (Panthera leo) female stalking Blue Wildebeest (Connochaetes taurinus) herd, Serengeti National Park, Tanzania

Gerry Ellis / Blue Wildebeest (Connochaetes taurinus) herd migrating in a line, Masai Mara National Reserve, Kenya

Thomas Mangelsen / Blue Wildebeest (Connochaetes taurinus) and newborn, Kenya

Yva Momatiuk & John Eastcott / Blue Wildebeest (Connochaetes taurinus) herd trying to cross Mara River, fleeing from hungry Crocodiles, Masai Mara National Reserve, Kenya

Yva Momatiuk & John Eastcott / Burchell's Zebra (Equus burchellii) herd Blue Wildebeest (Connochaetes taurinus) and Thomson's Gazelles (Eudorcas thomsonii) congregate near crossing, Mara River, Masai Mara National Reserve, Kenya

Yva Momatiuk & John Eastcott / Burchell's Zebra (Equus burchellii) and Blue Wildebeest (Connochaetes taurinus) herds grazing together in open grassland during short rainy season in November, Masai Mara National Reserve, Kenya

Yva Momatiuk & John Eastcott / Burchell's Zebra (Equus burchellii) and Blue Wildebeest (Connochaetes taurinus) herds grazing together in open grassland during short rainy season in November, Masai Mara National Reserve, Kenya

Gerry Ellis / Burchell's Zebra (Equus burchellii) and Blue Wildebeest (Connochaetes taurinus) crossing the Mara River, Masai Mara National Reserve, Kenya

Gerry Ellis / Blue Wildebeest (Connochaetes taurinus) herd migrating across Serengeti, Masai Mara National Reserve, Kenya

Mitsuaki Iwago / Blue Wildebeest (Connochaetes taurinus) herd migrating, Serengeti National Park, Tanzania

Anup Shah / Wildebeest silhouetted at dusk, Masai Mara, Kenya, East Africa

Mitsuaki Iwago / Blue Wildebeest (Connochaetes taurinus) herd descending cliff during migration, Serengeti

Mitsuaki Iwago / Blue Wildebeest (Connochaetes taurinus) herd with Burchell's Zebra (Equus burchellii) crossing river during migration, Serengeti

Mitsuaki Iwago / Blue Wildebeest (Connochaetes taurinus) herd with Burchell's Zebra (Equus burchellii) crossing river during migration, Serengeti

ZSSD / Blue Wildebeest (Connochaetes taurinus) portrait, native to eastern Africa

Anup Shah / Common zebra and Wildebeest leap into River Mara during migration, Masai Mara, Kenya

Anup Shah / Wildebeest juvenile jumping into Mara River, Masai Mara, Kenya

Peter Blackwell / Wildebeest migrating across the Mara River, Kenya

Anup Shah / Wildebeest herds on the Serengeti, Tanzania

Tony Heald / Wildebeest {Connochaetes taurinus} running over dusty ground, Kgaladi Transfrontier / Kalahari Gemsbok NP, South Africa

Martin Dohrn / Wildebeest {Connochaetes taurinus} under stars at night, Masai Mara, Kenya. Starlight image intensifier camera image taken with no artificial light

Anup Shah / Migrating Wildebeest {Connochaetes taurinus} and Zebra (Equus burchelli) mixed herd, Masai Mara NR, Kenya

Jabruson / African wild dog pack {Lycaon pictus} attack Wildebeest {Connochaetus taurinus} Serengeti NP, Tanzania

TJ Rich / Newborn wildebeest taking first steps beside mother {Connochaetes taurinus} Masai Mara, Kenya, Africa

Anup Shah / Hot air safari balloon above Wildebeest herd {Connochaetes taurinus} Masai Mara NR Kenya, animals on annual migration

Anup Shah / Wildebeest herd crossing Mara river {Connochaetes taurinus} on migration, Masai Mara NR Kenya, East Africa

Anup Shah / Wildebeest migration on savanna {Connochaetes taurinus} Masai Mara NR Kenya East Africa

Martin Dohrn / Stampeding Wildebeest {Connochaetes taurinus}. Heads held low to see ground in pitch black night. Serengeti, Tanzania, East Africa. Infra red image from 'Starlight' camera, from film.

Anup Shah / Wildebeest crossing Mara river on migration , Masai Mara, Kenya

Anup Shah / Wildebeest (Connochaetes taurinus) and Common zebra (Equus quagga) crossing Mara river during migration, Masai Mara NR, Kenya

Piotr Naskrecki / Manaus Slender-legged Treefrog (Osteocephalus taurinus) in rainforest, Suriname

Ann & Steve Toon / Wildebeest (Connochaetes taurinus) on migration under dark skies, Masai Mara game reserve, Kenya, September 2012

Winfried Wisniewski / Blue Wildebeest (Connochaetes taurinus) herd crossing Mara River, Masai Mara, Kenya

Winfried Wisniewski / Blue Wildebeest (Connochaetes taurinus) herd with Burchell's Zebra (Equus burchellii) and tourists in landrover and hot air balloon, Masai Mara, Kenya

Tim Fitzharris / Blue Wildebeest (Connochaetes taurinus) herd at sunset, Masai Mara, Kenya

Winfried Wisniewski / Grant's Zebra (Equus burchellii boehmi) herd drinking along river bank with Blue Wildebeest (Connochaetes taurinus), Masai Mara, Kenya

Winfried Wisniewski / Blue Wildebeest (Connochaetes taurinus) herd crossing the Mara River during migration, Kenya

Winfried Wisniewski / Blue Wildebeest (Connochaetes taurinus) herd crossing the Mara River during migration, Kenya

Winfried Wisniewski / Blue Wildebeest (Connochaetes taurinus) herd and Burchell's Zebra (Equus burchelli) crossing the Mara River during migration, Kenya

Winfried Wisniewski / Blue Wildebeest (Connochaetes taurinus) herd crossing the Mara River during migration, Kenya

Winfried Wisniewski / Blue Wildebeest (Connochaetes taurinus) herd crossing the Mara River during migration, Kenya

Christophe Courteau / Wildebeest running {Connochaetes taurinus} Okavango delta Botswana

Peter Cairns / Wildebeest (Connochaetes taurinus) on migration, Serengeti National Park, Tanzania.

Peter Cairns / Wildebeest (Connochaetes taurinus) on migration, Serengeti National Park, Tanzania.

Peter Cairns / Wildebeest (Connochaetes taurinus) on migration, Serengeti National Park, Tanzania, East Africa

Ann & Steve Toon / White rhinoceros (Ceratotherium simum) four at waterhole with Wildebeest behind (Connochaetes taurinus) Mkhuze Game Reserve, Kwazulu Natal, South Africa

Anup Shah / Topi (Damaliscus lunatus jimela), Eastern White-bearded Wildebeest (Connochaetes taurinus) and Common or Plains zebra (Equus quagga burchellii) mixed herd crossing the Mara River watched by tourists i...

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) and Common or Plains zebra (Equus quagga burchellii) mixed herd crossing the Mara River as part of annual migration, Masai Mara National Reserv...

Anup Shah / Topi (Damaliscus lunatus jimela), Eastern White bearded Wildebeest (Connochaetes taurinus) and Common or Plains zebra (Equus quagga burchellii) mixed herd crossing the Mara River as part of annual mig...

Anup Shah / Topi (Damaliscus lunatus jimela), Eastern White bearded Wildebeest (Connochaetes taurinus) and Common or Plains zebra (Equus quagga burchellii) mixed herd crossing the Mara River as part of annual mig...

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River as part of annual migration, Masai Mara National Reserve, Kenya, August

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River as part of annual migration, Masai Mara National Reserve, Kenya, August

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River as part of annual migration, Masai Mara National Reserve, Kenya, August

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River as part of annual migration, Masai Mara National Reserve, Kenya, August

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) herd feeding on the grass plains of Masai Mara National Reserve, with tourist vehicle amongst them, Kenya, September 2010

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River as part of annual migration, Masai Mara National Reserve, Kenya, August

Anup Shah / Eastern White-bearded Wildebeest (Connnochaetes taurinus) standing amongst the herd, Masai Mara National Reserve, Kenya, September

Anup Shah / Topi (Damaliscus lunatus jimela), Eastern White bearded Wildebeest (Connochaetes taurinus) and Common or Plains zebra (Equus quagga burchellii) mixed herd crossing the Mara River as part of annual mig...

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) in stand-off with pride of African lions (Panthera leo) Masai Mara National Reserve, Kenya, September, sequence 6/12

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River as part of annual migration, Masai Mara National Reserve, Kenya, August

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) being attacked by pride of African lions (Panthera leo) Masai Mara National Reserve, Kenya, September, sequence 8/12

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) being attacked by pride of African lions (Panthera leo) Masai Mara National Reserve, Kenya, September, sequence 10/12

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) being attacked by pride of African lions (Panthera leo) Masai Mara National Reserve, Kenya, September, sequence 7/12

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) being attacked by pride of African lions (Panthera leo) Masai Mara National Reserve, Kenya, September, sequence 5/12

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) being attacked by pride of African lions (Panthera leo) Masai Mara National Reserve, Kenya, September, sequence 2/12

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) herd feeding on the grass plains of Masai Mara National Reserve, Kenya, September

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) in stand-off with African lions (Panthera leo) Masai Mara National Reserve, Kenya, September, sequence 11/12

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) in stand-off with pride of African lions (Panthera leo) Masai Mara National Reserve, Kenya, September, sequence 4/12

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) in stand-off with pride of African lions (Panthera leo), Masai Mara National Reserve, Kenya, September, sequence 1/12

Anup Shah / Eastern White bearded Wildebeest (Connochaetes taurinus) being attacked by Africa lions (Panthera leo) Masai Mara National Reserve, Kenya, September, sequence 3/12

Charlie Summers / Wildbeest (Connochaetes taurinus) as far as the eye can see from Naabi Hill, gathering and migrating to short grass plains to the south, Serengeti National Park, Tanzania. This year, 2012, there were...

Charlie Summers / Wildebeest (Connochaetes taurinus) a herd crosses the Mbalageti River in the Serengeti National Park of Tanzania. This year, 2012, there were massive amounts of animals in this migration, perhaps upwa...

Charlie Summers / White-bearded Gnu / Wildebeest (Connochaetes taurinus) males assess their opponents prior to fighting. Ngorongoro Crater, Tanzania.

Charlie Summers / White-bearded Gnu / Wildebeest (Connochaetes taurinus) in a dominance fight on their knees with dust flying. Ngorongoro Crater, Tanzania.

Charlie Summers / White-bearded Gnu / Wildebeest (Connochaetes taurinus) males assess their opponents prior to fighting. Ngorongoro Crater, Tanzania.

Charlie Summers / White-bearded Gnu / Wildebeest (Connochaetes taurinus) mother and sleeping calf. Ngorongoro Crater, Tanzania.

Tony Heald / Wildebeest (Connochaetes taurinus) profile portrait, Etosha National Park, Namibia

Richard Du Toit / Wildebeest (Connochaetes taurinus) on grass plain. Gauteng province, South Africa, November.

Bert Willaert / Manaus Slender-legged Treefrog (Osteocephalus taurinus) portrait. Ecuador, January.

Matthias Breiter / Blue Wildebeest (Connochaetes taurinus) pair, Okavango Delta, Botswana

Nick Garbutt / White-bearded Wildebeest (Connochaetes taurinus albojubatus) grazing before Nasera Rocks. Lemuta area, Ngorongoro Conservation Area, Serengeti National Park, Tanzania. (Digitally stitched image.)

Nick Garbutt / Female African Lion (Panthera leo) with young White-bearded Wildebeest (Connochaetes taurinus albojubatus) prey and 4 month cub. Big Marsh, near Ndutu, Nogorongoro Conservation Area, Serengeti Nationa...

Ole Jorgen Liodden / Wildebeest (Connochaetes taurinus) jumping into Mara River. Masai Mara, Kenya, September.

Richard Du Toit / Close up of Blue wildebeest mane (Connochaetes taurinus) Kalahari, Northern Cape, South Africa January

Richard Du Toit / Blue wildebeest bull (Connochaetes taurinus) calling, Kalahari, Northern Cape, South Africa, January

Ole Jorgen Liodden / Wildebeest (Connochaetes taurinus) herd crossing Mara River. Masai Mara, Kenya, September.

Ole Jorgen Liodden / Wildebeest (Connochaetes taurinus) and zebra crossing Mara River. Masai Mara, Kenya, September.

Ole Jorgen Liodden / Wildebeest (Connochaetes taurinus) crossing Mara River. Masai Mara, Kenya, September.

Ole Jorgen Liodden / Wildebeest (Connochaetes taurinus) struggling through the water of the Mara River. Masai Mara, Kenya, September.

Anup Shah / Eastern White bearded wildebeest running (Connochates taurinus albojubatus) Masai Mara National Reserve, Kenya

Anup Shah / Eastern White bearded wildebeest herd running (Connochates taurinus albojubatus), Masai Mara National Reserve, Kenya

Anup Shah / Eastern White bearded wildebeest (Connochates taurinus albojubatus) close up of running legs, Masai Mara National Reserve, Kenya

Anup Shah / Eastern White bearded wildebeest (Connochates taurinus albojubatus) close up of running legs, Masai Mara National Reserve, Kenya

Anup Shah / Eastern White bearded wildebeest (Connochates taurinus albojubatus) female and calf portrait close-uo, Masai Mara National Reserve, Kenya

Anup Shah / Rainbow during a rainstorm across savannah plains with grazing Wildebeest (Connochaetes taurinus) and Thomson's gazelle (Eudorcas thomsoni), Masai Mara National Reserve, Kenya, August 2008