Anup Shah / Mixed herd of Common or Plains zebra (Equus quagga burchellii) and Eastern white-bearded wildebeest (Connochaetes taurinus) - remote camera. Masai Mara National Reserve, Kenya.

Sandesh Kadur / Blue wildebeest (Connochaetes taurinus) crossing a river, Serengeti National Park, Tanzania.

Philippe Clement / Pair of Black-tailed godwits (Limosa limosa) courting and mating in wetland, Belgium, April

Nick Upton / Panning shot of a flock of Lapwings (Vanellus vanellus) landing on partially flooded pastureland near resting Black-tailed godwits (Limosa limosa) and grazing Wigeon (Anas penelope), Gloucestershire,...

Ingo Arndt / Aerial view of Wildebeest (Connochaetes taurinus) herd migrating, Masai Mara National Reserve, Kenya, Africa

Ingo Arndt / Wildebeest (Connochaetes taurinus) herd running, Masai Mara National Reserve, Kenya

Ann & Steve Toon / Common wildebeest (Connochaetes taurinus) with reflection at waterhole, Zimanga private game reserve, KwaZulu-Natal, South Africa, September

Denis-Huot / Blue wildebeest (Connochaetes taurinus), migrating herd silhouetted on the horizon at sunset, Masai Mara Game Reserve, Kenya

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River. Masai Mara National Reserve, Kenya.

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River. Masai Mara National Reserve, Kenya.

Wim van den Heever / Blue wildebeest (Connochaetes taurinus) herd silhouetted against the rising sun with clouds in the background. Greater Kruger National Park, South Africa

Wim van den Heever / Blue wildebeest (Connochaetes taurinus) leaping into Mara River, Masai Mara, Kenya.

Wim van den Heever / Blue wildebeest (Connochaetes taurinus) running, Masai Mara, Kenya.

Wim van den Heever / Blue wildebeest (Connochaetes taurinus) herd during migration, Masai Mara, Kenya.

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

Denis-Huot / Lioness (Panthera leo) playing with lost baby Wildebeest (Connochaetes taurinus), Masai-Mara Game Reserve, Kenya.

Denis-Huot / Lioness (Panthera leo) playing with a lost baby Wildebeest (Connochaetes taurinus), Masai-Mara Game Reserve, Kenya

Denis-Huot / Lioness (Panthera leo) playing with a lost baby Wildebeest (Connochaetes taurinus), Masai-Mara Game Reserve, Kenya

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River. Maasai Mara National Reserve, Kenya.

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River. Maasai Mara National Reserve, Kenya.

Anup Shah / Common or plains zebra (Equus quagga burchelli) and Eastern White-bearded Wildebeest (Connochaetes taurinus) mixed herd crossing the Mara River. Maasai Mara National Reserve, Kenya.

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River. Maasai Mara National Reserve, Kenya.

Anup Shah / Common or plains zebra (Equus quagga burchelli) and Eastern White-bearded Wildebeest (Connochaetes taurinus) mixed herd crossing the Mara River. Maasai Mara National Reserve, Kenya.

Denis-Huot / Wildebeest (Connochaetes taurinus) herd below stormy sky during migration, Masai-Mara game reserve, Kenya.

Denis-Huot / Rear view of Wildebeest (Connochaetes taurinus) herd crossing the Mara river, Masai-Mara game reserve, Kenya.

Ammonite / Large group of Black wildebeest (Connochaetes gnou) migrating across savanna in a line, footage taken at night using thermal camera technology, Masai Mara, Kenya.

Anup Shah / Eastern white-bearded wildebeest (Connochaetes taurinus) herd running. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / Eastern white-bearded wildebeest (Connochaetes taurinus) herd crossing the Mara River watched by tourists. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / Eastern white-bearded wildebeest (Connochaetes taurinus) herd running. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / Eastern white-bearded wildebeest (Connochaetes taurinus) herd running. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / Common or plains zebra (Equus quagga burchelli) and Eastern white-bearded wildebeest (Connochaetes taurinus) mixed herd running. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera...

Anup Shah / Eastern white-bearded wildebeest (Connochaetes taurinus) herd running. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / Eastern white-bearded wildebeest (Connochaetes taurinus) herd running. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / Eastern white-bearded wildebeest (Connochaetes taurinus) herd running. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / Eastern white-bearded wildebeest (Connochaetes taurinus) herd running. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah,Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd on the move Masai Mara National Reserve, Kenya, July

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River and clambering up steep bank. Masai Mara National Reserve, Kenya, July

Denis-Huot,Denis-Huot / Grant's zebra (Equus burchelli boehmi) in a migration herd of wildebeest (Connochaetes taurinus) Masai-Mara Game Reserve, Kenya

Denis-Huot / Grant's zebra (Equus burchelli boehmi) in a migration herd of wildebeest (Connochaetes taurinus) Masai-Mara Game Reserve, Kenya

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

Denis-Huot / Wildebeest (Connochaetes taurinus) running for down steep bank of the Mara river during migration, Masai-Mara Game Reserve, Kenya

Denis-Huot / Wildebeest (Connochaetes taurinus) herd in the rain, Masai-Mara Game Reserve, Kenya

Denis-Huot / Wildebeest (Connchaetes taurinus) running down bank of the Mara River during migration, Masai Mara, Kenya

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

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) swimming in shallow crystal clear water, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) fins at frenzied surface, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) group swimming in shallow turquoise sea, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef shark (Carcharhinus melanopterus), Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef shark (Carcharhinus melanopterus) approaching Grey heron (Ardea cinerea) in shallow water, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reefs sharks (Carcharhinus melanopterus) dorsal fins visible at sea surface at dusk, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) in shallow water gathering very close to shore, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) swimming in shallow crystal clear water, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) split level view of group hunting at dusk, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef shark (Carcharhinus melanopterus) swimming in shallows at sunset, Aldabra Atoll, Seychelles, Indian Ocean

Chris Gomersall / 2020VISION / Black-tailed godwit (Limosa limosa) adult in winter plumage feeding on mudflats, The Wash, Norfolk, England, UK, December

Chris Gomersall / 2020VISION / Black-tailed godwit (Limosa limosa) adult in winter plumage feeding on mudflats, The Wash, Norfolk, England, UK, December

Nick Garbutt / Herd of White-bearded Wildebeest (Connochaetes taurinus albojubatus) with calves in Long Gully near Ndutu on their annual migration. Ngorongoro Conservation Area, Serengeti Ecosystem, Tanzania. (Digit...

Laurent Geslin / African lion (Panthera leo) two cubs licking blood off their faces after feeding on Wildebeest carcass, Masai Mara reserve, Kenya

Laurent Geslin / Mass of Wildebeest {Connochaetes taurinus} scrambling to get out of the river during the great migration, Masai Mara reserve, Kenya, July

David Tipling / 2020VISION / Black-tailed godwit (Limosa limosa) taking off from tidal pool, Snettisham RSPB reserve, Norfolk, UK, March. 2020VISION Exhibition. 2020VISION Book Plate. Did you know? The black-tailed godwit's bill...

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective. Masai Mara National Reserve, Kenya. August

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective, Masai Mara National Reserve, Kenya. August

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective, Masai Mara National Reserve, Kenya. August

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective, Masai Mara National Reserve, Kenya. October

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective, Masai Mara National Reserve, Kenya. October

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective Masai Mara National Reserve, Kenya. October

Anup Shah / Eastern White-bearded Wildebeest herd (Connochaetes taurinus) and Common / Plains zebra (Equus quagga burchellii) running away from the Mara River after crossing - wide angle perspective. Masai Mara N...

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River - wide angle perspective, Masai Mara National Reserve, Kenya. September 2009.

Anup Shah / Thomson's gazelles (Eudorcas thomsonii) following a herd of Wildebeest (Connochaetes taurinus) as they cross the Mara River, wide angle perspective, Masai Mara National Reserve, Kenya. September

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running, rear view, wide angle perspective, Masai Mara National Reserve, Kenya. September

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River - wide angle perspective Masai Mara National Reserve, Kenya. September

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running after crossing Mara river, wide angle perspective. Masai Mara National Reserve, Kenya. September

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective, Masai Mara National Reserve, Kenya. August

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective, Masai Mara National Reserve, Kenya. August 2009.

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective, Masai Mara National Reserve, Kenya. August 2009.

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective, Masai Mara National Reserve, Kenya. August 2009.

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd crossing the Mara River, close up of legs - wide angle perspective. Masai Mara National Reserve, Kenya. September 2009.

Anup Shah / Eastern white-bearded wildebeest herd (Connochaetes taurinus) waiting to cross the Mara River. Masai Mara National Reserve, Kenya, October 2009

Anup Shah / Nile crocodile (Crocodylus niloticus) attacking a Wildebeest (Connochaetes taurinus) as it crosses the Mara River. Masai Mara National Reserve, Kenya, October 2009

Charlie Summers / Three Western Black-tailed Prairie Dogs (Cynomys ludovicianus) at entrance to burrow. Cheyenne River drainage south of Hot Springs, South Dakota, USA

John Cancalosi / Blacktail Prairie Dog (Cynomys ludovicianus) engaging in Jump-yip behavior - A strong arch of the back or "jump" followed by a shrill "yip" - Thought to occur when a predator has left the area and in...

Staffan Widstrand / Herd of Wildebeest (Connochaetes taurinus) silhouetted at dusk, Serengeti NP, Tanzania, East Africa, January

Russell Cooper / Avocets (Recurvirostra avosetta) and Black Tailed Godwits (Limosa limosa) on the lagoon at Brownsea Island, Poole Harbour, Dorset, England, UK, October 2009.

Charlie Summers / Black-tailed Prairie dog (Cynomys ludovicianus) on hind legs, emitting territorial call, Downtown Parker, Colorado, USA, North America

Inaki Relanzon / Migrating wildebeest (Connochaetes taurinus) observed from a hot-air balloon, Masai Mara National Reserve, Kenya, Africa. August 2009

Guy Edwardes / Black-tailed godwits (Limosa limosa) fighting, Lodmoor RSPB reserve, Weymouth, Dorset, England, August

Andy Rouse / Common wildebeest (Connochaetes taurinus) jumping into Mara River during migration, Masai Mara, Kenya

Andy Rouse / Male Common wildebeest (Connochaetus taurinus) running, Masai Mara, Kenya

Andy Rouse / Common wildebeest (Connochaetes taurinus) being held by crocodile during migration river crossing, Masai Mara, Kenya

Andy Rouse / Common wildebeest (Connochaetes taurinus) crossing river on migration, Masai Mara, Kenya

Andy Rouse / Aerial view of Common wildebeest (Connochaetes taurinus) feeding on plains during migration, Masai Mara, Kenya

Andy Rouse / Common wildebeest (Connochaetes taurinus) gathering to cross river on migration, Masai Mara, Kenya

Andy Rouse / Common wildebeest (Connochaetes taurinus) jumping into river on migration, Masai Mara, Kenya

Andy Rouse / Common wildebeest (Connochaetes taurinus) about to cross river during migration, Masai Mara, Kenya

Andy Rouse / Common wildebeest (Connochaetes taurinus) running on migration, Masai Mara, Kenya

David Tipling / Mixed flock of Black-tailed Godwit {Limosa limosa} with Knot {Calidris canutus} and Redshank {Tringa totanus} at high tide roost, Snettisham RSPB Reserve, The Wash, Norfolk, UK, August