Charlie Summers / Two Giraffes (Giraffa camelopardalis) use their necks in fight for dominance, Etosha Pan, Namibia, Southern Africa

Charlie Summers / Backlit Gemsboks (Oryx gazella gazella) at sunrise approach Etosha pan waterhole, Namibia, Southern Africa

Tony Heald / Red billed pintail / teal (Anas erythrorhyncha) in shallow waters of the Etosha pan, Etosha National Park, Namibia October

Tony Heald / Lesser flamingo (Phoenicopterus minor) flock flying over many more in shallow waters of the Etosha pan, Etosha National Park, Namibia October

Chris Gomersall / Herd of Burchell's zebra (Equus quagga) by the Etosha Pan, Etosha National Park, Namibia, November

Jouan & Rius / Ostrich (Struthio camelus) on Etosha pan, Etosha NP, Namibia

Jouan Rius / Blue wildebeests (Connochaetes taurinus) herd on Etosha pan, Etosha NP, Namibia

David Noton / Impala {Aepyceros melampus} on the Etosha pan, Etosha National Park, Namibia

Tony Heald / Black rhinoceros (Diceros bicornis) on salt pan Etosha NP Namibia

Tony Heald / Two Giraffe {Giraffa camelopardalis} walking across Etosha pan, Etosha national park, Namibia.

Tony Heald / Three Common zebra {Zebra burchelli} on the Etosha pan, Etosha NP, Namibia

Martin Gabriel / Desert landscape with clouds over the Pan Etosha National Park in rainy season, Namibia