Philip Stephen / Northern Gannet (Morus bassanus) on the North Sea, with breaking wave.

Charlie Hamilton James / Common kingfisher {Alcedo atthis} diving abstract, Gloucestershire, UK

Mark Carwardine / Common bottlenose dolphin (Tursiops truncatus) swimming fast, Baja California, Sea of Cortez (Gulf of California), Mexico

Mark Carwardine / Common bottlenose dolphin (Tursiops truncatus) swimming fast, Baja California, Sea of Cortez (Gulf of California), Mexico

Doug Allan / Emperor penguins diving {Aptenodytes forsteri} Antarctica. Emperor penguins are the bird diving champions and can acheive a depth of 500m. Humans can only descend 150m before the water pressure collap...

Stephen Dalton / Cat flea {Ctenocephalides felis} leaping sequence, multiflash image

Stephen Dalton / Cat flea {Ctenocephalides felis} jumping from cat fur, UK

Carol Walker / Wild horses / Mustangs, mare and foal running, Adobe Town herd, southwestern Wyoming, USA, May 2011

Kristel Richard / A group of Pure Arab, Shagya Arab and East Bulgarian fillies running in snow, Kabiuk National Stud, Shumen, Bulgaria.

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.

Tui De Roy / White bellied woodstar (Chaetocercus mulsant) in flight, Guango private reserve, Papallacta Valley, Andean Cloud Forest, East slope, Ecuador

Roland Seitre / Green Thorntail Hummingbird (Discosura conversii) in flight. Rancho Naturalista, Turrialba, Panama.

Diane McAllister / Male Anna's hummingbird (Calypte anna) hovers in mid-air looking at the camera in a backyard in Reno. Nevada, USA, August

Edwin Giesbers / Wildebeest (Connochaetes taurinus) adult and baby running, Tanzania

Angelo Gandolfi / Two wild European Grey wolves (Canis lupus) playing, Carpathian Mountains, Eastern Europe

Wild Wonders of Europe / Widstrand / RF- Wild European Grey wolf (Canis lupus) running at night, Kuhmo, Finland. July. (This image may be licensed either as rights managed or royalty free.)

Wild Wonders of Europe / Munier / Reindeer (Rangifer tarandus) running, Forollhogna National Park, Norway, September 2008. WWE BOOK. WWE OUTDOOR EXHIBITION

Eric Dragesco / Three Asiatic Wild Ass (Equus hemionus) running, Gobi National Park, Mongolia

Markus Varesvuo / Common Swift (Apus apus), looking up at an adult in flight. Liminka, Finland. August.

Alan Williams / Common swifts (Apus apus) in flight, Merseyside, Wirral, UK, July

Markus Varesvuo / Common Swift (Apus apus) in flight, Helsinki Finland July

Markus Varesvuo / Swift (Apus apus) in flight. Helsinki, Finland. July

Wild Wonders of Europe / Geslin / Peregrine falcon (Falco peregrinus) in flight, Barcelona, Spain, April

Terry Whittaker / Peregrine Falcon (Falco peregrinus) in flight near the White Cliffs of Dover, Kent, UK. May 2012

John Waters / Male Peregrine Falcon {Falco peregrinus} swerving in flight, start of swoop, captive, Somerset, UK.

Colin Seddon / European hare {Lepus europaeus} running in grassland, near Cheddar Gorge, Somerset, UK

Paul Hobson / Four Brown hares (Lepus europaeus) chasing each other through field, Derbyshire, England, UK. March.

Juan Carlos Munoz / Granada / Iberian hare (Lepus granatensis) running, Extremadura, Spain, May.

Eric Dragesco / Black Tailed Gazelle (Gazella subgutturosa) male running, Gobi Desert, Mongolia

Andy Rouse / 2020VISION / Three European Hare (Lepus europaeus) chasing, a courtship behaviour. Wales, UK, June.

Adriano Bacchella / Greyhound running

Andy Rouse / Cheetah (Acinonyx jubatus) running, Kenya (non-ex)

Andy Rouse / Cheetah (Acinonyx jubatus) cub chasing Jackal, Masai Mara, Kenya (non-ex)

Juan Carlos Munoz / Cheetah (Acinonyx jubatus) running, Kalahari Desert, Botswana.

Anup Shah / Cheetah female hunting Masai Mara Kenya. Sequence to show manoeuvring 2/3. Prey is Thomson's gazelle.

Andy Rouse / Cheetah (Acinonyx jubatus) running fast, Masai Mara, Kenya

Andy Rouse / Cheetah (Acinonyx jubatus) running, Kenya (non-ex)

Wild Wonders of Europe / Geslin / Peregrine falcon (Falco peregrinus) diving, Barcelona, Spain, April

Bernard Castelein / Blackbuck (Antilope cervicapra) male running, Rajasthan, India

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

Wild Wonders of Europe / Hamblin / Red deer (Cervus elaphus) stags on the move, Oostvaardersplassen, Netherlands, June 2009

Bryan and Cherry Alexander / Boys wearing lycra racing Reindeer (Rangifer tarandus). Inari, Finland, 1996.

Sergey Gorshkov / Red fox (Vulpes vulpes) one fox chasing another across snow, Kamchatka, Far east Russia, April

Carol Walker / Grey Andalusian / Spanish stallion running, California, USA

Andy Rouse / RF- Grizzly bear (Ursus arctos horribilis) leaping through water, chasing salmon. Katmai National Park, Alaska, USA, August. (This image may be licensed either as rights managed or royalty free.)

Laurent Geslin / Herd of Wildebeest (Connochaetes taurinus) running, migration, Masai Mara reserve, Kenya, July

Ole Jorgen Liodden / Beisa oryx (Oryx beisa) galloping at speed. Samburu, Kenya, December.