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

Francois Savigny / African elephant walking through grass (Loxodonta africana) Etosha Pan, Etosha NP, Namibia

Christophe Courteau / Black-backed jackals (Canis mesomelas) two fighting in dust pan, Etosha National Park. Namibia.

Christophe Courteau / Black-backed jackals (Canis mesomelas) two fighting in dust pan, Etosha National Park. Namibia.

Christophe Courteau / Cheetah (Acinonyx jubatus) sitting in shade of tree looking around, near Etosha Pan, Etosha National Park, Namibia

Yva Momatiuk & John Eastcott / Blue Wildebeest (Connochaetes taurinus) pair in salt pan, Etosha Pan, Etosha National Park, Namibia

Yva Momatiuk & John Eastcott / Ostrich (Struthio camelus) pair in salt pan, Etosha Pan, Etosha National Park, Namibia

Yva Momatiuk & John Eastcott / Angolan Giraffe (Giraffa giraffa angolensis) male smelling female to see if she is in estrus in salt pan, Etosha Pan, Etosha National Park, Namibia

Yva Momatiuk & John Eastcott / Angolan Giraffe (Giraffa giraffa angolensis) in salt pan, Etosha Pan, Etosha National Park, Namibia

Yva Momatiuk & John Eastcott / Angolan Giraffe (Giraffa giraffa angolensis) in salt pan, Etosha Pan, Etosha National Park, Namibia

Yva Momatiuk & John Eastcott / Angolan Giraffe (Giraffa giraffa angolensis) pair in salt pan, Etosha Pan, Etosha National Park, Namibia

Yva Momatiuk & John Eastcott / Zebra (Equus quagga)pair and Red Hartebeest (Alcelaphus caama) in salt pan, Etosha Pan, Etosha National Park, Namibia

Wim van den Heever / African Elephant (Loxodonta africana) caked in white mud from a waterhole, coming towards camera, Etosha Pan. Etosha National Park, Namibia

Eric Baccega / Lion (Panthera leo) male walking in profile in the Etosha Pan during dry season, Etosha National Park, Namibia, Africa.

Eric Baccega / Lion (Panthera leo) male walking in profile in the Etosha Pan during dry season, Etosha National Park, Namibia, Africa.

Eric Baccega / Lion (Panthera leo) male walking in profile in the Etosha Pan during dry season, Etosha National Park, Namibia, Africa.

Eric Baccega / Lion (Panthera leo) male walking in profile in the Etosha Pan during dry season, Etosha National Park, Namibia, Africa.

Eric Baccega / Plains zebra (Equus quagga / burchelli) with Blue wildebeest (Connochaetes gnou) under tree background, in Etosha pan, during dry season, Etosha National Park, Namibia, Africa.

Enrique Lopez-Tapia / Black rhinos (Diceros bicornis) at water hole at night, taken with infra red, Okaukuejo pan, Etosha National Park, Namibia. Critically endangered species.

Enrique Lopez-Tapia / Black rhino (Diceros bicornis) and Angolan Giraffe (Giraffa camelopardalis angolensis) at watering hole at night, taken with infra red camera, Okaukuejo pan, Etosha National Park, Namibia.

Enrique Lopez-Tapia / Black rhino (Diceros bicornis) and Angolan Giraffe (Giraffa camelopardalis angolensis) at watering hole at night, taken with infra red camera, Okaukuejo pan, Etosha National Park, Namibia.

Enrique Lopez-Tapia / Black rhino (Diceros bicornis) at watering hole at night, taken with infra red camera, Okaukuejo pan, Etosha National Park, Namibia. Critically endangered species.

Lou Coetzer / Six Giraffes (Giraffa camelopardalis) silhouetted against orange sky, Fishers Pan, Etosha National Park, Namibia, July.

Lou Coetzer / Four Burchell's / Plains zebras (Equus quagga / burchelli) walking through water filled Fisher's Pan, Etosha National Park, Namibia, June.

Laurent Geslin / Spotted Hyaena (Crocuta crocuta) running, Etosha Pan, Namibia

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

Yva Momatiuk & John Eastcott / Blue Wildebeest (Connochaetes taurinus) trio in salt pan, Etosha Pan, Etosha National Park, Namibia

Yva Momatiuk & John Eastcott / Angolan Giraffe (Giraffa giraffa angolensis) in salt pan, Etosha Pan, Etosha National Park, Namibia

Yva Momatiuk & John Eastcott / Angolan Giraffe (Giraffa giraffa angolensis) group in salt pan, Etosha Pan, Etosha National Park, Namibia

Yva Momatiuk & John Eastcott / Angolan Giraffe (Giraffa giraffa angolensis) pair in salt pan, with one individual drinking, Etosha Pan, Etosha National Park, Namibia

Yva Momatiuk & John Eastcott / Angolan Giraffe (Giraffa giraffa angolensis) drinking from stream in salt pan, Etosha National Park, Namibia

Yva Momatiuk & John Eastcott / Angolan Giraffe (Giraffa giraffa angolensis) pair in salt pan, Etosha Pan, Etosha National Park, Namibia

Oriol Alamany / Black rhinoceros (Diceros bicornis) grazing in Etosha Pan shores at sunset, Etosha National Park, Namibia, October. Critically endangered.

Emanuele Biggi / Umbrella thorn tree (Vachellia tortilis) in the Etosha pan with common ostrich (Struthio camelus) male. Etosha National Park, Namibia

Oriol Alamany / African bush elephants (Loxodonta africana) on the Etosha Pan near Namutoni, Etosha National Park, Kunene, Namibia