Wim van den Heever / Ancient dead Camelthorn tree (Vachellia erioloba) trees with red dunes, Namib desert, Deadvlei, Sossusvlei, Namibia. August 2015.

Wim van den Heever / Ancient dead Camelthorn tree (Vachellia erioloba) trees with red dunes and mist, Namib desert, Deadvlei, Sossusvlei, Namibia. August 2015.

Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) with red dunes, and star trails, Namib desert, Sossusvlei, Namibia. Composite.

Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) with red dunes and the milky way behind, Namib desert, Sossusvlei, Namibia. Composite.

Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) at night with red dunes behind. Namib desert, Sossusvlei, Namibia. Composite.

Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) with sand dunes, Namib desert, Deadvlei, Sossusvlei, Namibia.

Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) with sand dunes, Namib desert, Deadvlei, Sossusvlei, Namibia.

Hougaard Malan / Camelthorn tree in mountain valley at sunset. Namib Naukluft National Park, Namibia. February 2011.

Hougaard Malan / Typical landscape of red dunes, grass and camelthorn trees. Namib Rand, Namibia. May 2010.

Hougaard Malan / Sunrise through the branches of a camelthorn tree. Namib Rand, Namibia. May 2010.

Hougaard Malan / Camelthorn tree at sunrise with mountain beyond. Namib Rand, Namibia. May 2010.

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead tree with dunes in background, Namib-Naukluft National Park, Namibia

Jouan & Rius / Shadow of a Camelthorn tree (Acacia erioloba) in Tsauchab valley, Namib Naukluft NP, Namib desert, Namibia

Jose B. Ruiz / Camelthorn tree in Namib desert {Vachellia erioloba} Sossus Vlei, Namibia

Jen Guyton / Sunset over the Camelthorn trees (Vachellia erioloba) in the Kalahari Desert, South Africa.

Jen Guyton / Sunset over the Camelthorn trees (Vachellia erioloba) in the Kalahari Desert, South Africa.

Emanuele Biggi / Camel thorn tree (Acacia erioloba) half dead and close to dune, Sossusvlei area, Namib-Naukluft National Park, Namib Desert, Namibia

Emanuele Biggi / Deadvlei with dead Camel thorn tree (Vachellia erioloba) trees Namib-Naukluft National Park, Namib Desert, Namibia

Emanuele Biggi / Dead Camelthorn trees (Vachellia erioloba) on sand, Deadvlei, Sossusvlei, Naukluft National Park, Namib Desert, Namibia, June.

Ernie Janes / Deadvlei with dead Camel thorn trees, Namib-Naukluft National Park, Namib Desert, Namibia

Ernie Janes / Deadvlei with dead Camel thorn trees (Vachellia erioloba), Namib-Naukluft National Park, Namib Desert, Namibia

Adrian Davies / Ancient dead Camelthorn trees (Vachellia erioloba) and dry river bed, Sossusvlei, Namib Desert, Namibia

Juan Carlos Munoz / Ancient dead Camelthorn tree (Vachellia erioloba) in Deadvlei, Sossusvlei Salt Pan, Namib Naukluft National Park, Namibia

Juan Carlos Munoz / Ancient dead Camelthorn tree (Vachellia erioloba) in Deadvlei, Sossusvlei Salt Pan, Namib Naukluft National Park, Namibia

Juan Carlos Munoz / Tourists walking among ancient dead Camelthorn tree (Vachellia erioloba) in Deadvlei, Sossusvlei Salt Pan, Namib Naukluft National Park, Namibia

Juan Carlos Munoz / Tourists walking among ancient dead Camelthorn tree (Vachellia erioloba) in Deadvlei, Sossusvlei Salt Pan, Namib Naukluft National Park, Namibia

Juan Carlos Munoz / Ancient dead Camelthorn tree (Vachellia erioloba) in Deadvlei, Sossusvlei Salt Pan, Namib Naukluft National Park, Namibia

Wim van den Heever / Ancient dead Camelthorn tree (Vachellia erioloba) trees with red dunes, Namib desert, Deadvlei, Sossusvlei, Namibia. August 2015.

Juan Carlos Munoz / Dead Camel thorn trees (Vachellia / Acacia erioloba) with distant sand dunes, Deadvlei, Namib-Naukluft National Park, Namibia, Africa, June 2015.

Juan Carlos Munoz / Dead Camel thorn trees (Vachellia / Acacia erioloba) with distant sand dunes, Deadvlei, Namib-Naukluft National Park, Namibia, Africa, June 2015.

Hougaard Malan / Lone camelthorn tree silhouetted against setting sun in valley. Namib Rand, Namibia. April 2011. Non-ex.

Hougaard Malan / Camelthorn trees in grassy valley at sunset. Namib Naukluft National Park, Namibia. February 2011. Non-ex.

Hougaard Malan / Camelthorn tree silhouetted against sunset. Namib Naukluft National Park, Namibia. February 2011. Non-ex.

Hougaard Malan / Camelthorn tree below a bright milkyway. Namib Rand, Namibia. May 2010. Non-ex.

Hougaard Malan / Camelthorn tree in mountainous valley. Namib Rand, Namibia. May 2010. Non-ex.

Hougaard Malan / Dune valley dotted with camelthorn trees under a clear blue sky. Namib Rand, Namibia. May 2010. Non-ex.

Hougaard Malan / Dune valley dotted with camelthorn trees under a clear blue sky. Namib Rand, Namibia. May 2010. Non-ex.

Hougaard Malan / Lone camelthorn at sunrise. Namib Rand, Namibia. May 2010. Non-ex.

Hougaard Malan / Old camelthorn tree in dry grass field. Namib rand, Namibia. May 2010. Non-ex.

Hougaard Malan / Camelthorn tree below Sossusvlei's massive red dunes. Sossusvlei, Namib Naukluft National Park, Namibia. April 2014. Non-ex.

Chris Mattison / Camelthorn tree (Vachellia erioloba) Dan Viljoen National Park, Namibia

Richard Du Toit / African Elephant (Loxodonta africana) male and Camelthorn Acacia (Acacia erioloba), Chobe National Park, Botswana

Vincent Grafhorst / Camelthorn Acacia (Acacia erioloba) at night, Kgalagadi Transfrontier Park, Botswana

Vincent Grafhorst / Gemsbok (Oryx gazella) group resting in shade of Camelthorn Acacia (Acacia erioloba), Nossob River, Kgalagadi Transfrontier Park, South Africa

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead trees with dunes in background, Namib-Naukluft National Park, Namibia

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead tree with dunes in background, Dead Vlei, Namib-Naukluft National Park, Namibia

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead tree with dunes in background, Namib-Naukluft National Park, Namibia

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead tree with dunes in background, Dead Vlei, Namib-Naukluft National Park, Namibia

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead tree with dunes in background, Dead Vlei, Namib-Naukluft National Park, Namibia

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead trees with dunes in background, Dead Vlei, Namib-Naukluft National Park, Namibia

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead trees with dunes in background, Dead Vlei, Namib-Naukluft National Park, Namibia

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead tree with dunes in background, Dead Vlei, Namib-Naukluft National Park, Namibia

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead trees with dunes in background, Dead Vlei, Namib-Naukluft National Park, Namibia

Michael & Patricia Fogden / Camelthorn Acacia (Acacia erioloba) trees among sand dunes at Sossus Vlei, Namib-Naukluft National Park, Namibia

Jouan & Rius / Camel thorn pods {Vachellia erioloba} Kalahari desert, South Africa

Jouan & Rius / Camelthorn tree (Vachellia erioloba), Tsauchab valley, Namib Naukluft NP, Namib desert, Namibia

Jouan & Rius / Dead camelthorn tree (Vachellia erioloba) in the Tsauchab valley, Namib Naukluft NP, Namib desert, Namibia

Jouan & Rius / Sunset behind Camelthorn tree (Vachellia erioloba), Kgalagadi Transfrontier Park, Kalahari desert, South Africa

Richard Du Toit / Fallen seedpods from the Camelthorn tree {Vachellia erioloba} Moremi WR, Botswana

Martin Gabriel / Camelthorn thorns {Acacia erioloba} half buried in sand, Namib desert, Namibia

Pete Oxford / Camelthorn tree on dune {Vachellia erioloba} Kalahari Kgalagadi TP, South Africa

Philippe Clement / Giraffe (Giraffa camelopardalis) standing in the shade of a Grey Camelthorn tree (Acacia haematoxylon) Kalahari desert, Kgalagadi Transfrontier Park, South Africa

Philippe Clement / Giraffe (Giraffa camelopardalis) resting in the shade of a Camelthorn tree (Acacia haematoxylon)Kalahari desert, Kgalagadi Transfrontier Park, South Africa

Philippe Clement / Close-up of Camelthorn tree {Vachellia erioloba} seed pods, thorns and leaves, Kgalagadi Transfrontier Park, South Africa

Philippe Clement / Camel Thorn tree (Vachellia erioloba) in dry riverbed of Auob River, Kalahari desert, Kgalagadi Transfrontier Park, South Africa

Philippe Clement / Snouted Harvester Termites (Trinervitermes trinervoides) termite mound and Camelthorn tree after rains, Kalahari desert, Kgalagadi Transfrontier Park, South Africa

Martin Gabriel / Dawn light with camelthorn trees still in the shade. Namib Naukluft, Namibia {Acacia

Gerry Ellis / Camelthorn (Alhagi maurorum) in sand dune of dead veil near Sossusvlei, Namib-Naukluft National Park, Namibia

Pete Oxford / Camelthorn Acacia (Acacia erioloba) tree against dune 45, Sossusvlei, Namib-Naukluft National Park, Namibia

Gerry Ellis / Camelthorn (Alhagi maurorum) snag on desert pan, Namib-Naukluft National Park, Namibia

Gerry Ellis / Camelthorn (Alhagi maurorum) trees and calcite between dunes at Dead Veil, Namib-Naukluft National Park, Namibia

Richard Du Toit / Giraffe silhouetted under camelthorn tree {Giraffa camelopardalis} at sunset, Botswana Savute Chobe NP, Botswana, Southern Africa

Philippe Clement / Camelthorn tree in dry riverbed of the Nossob river Kalahari desert South Africa

Pete Oxford / Camelthorn acacia with seed pods {Vachellia erioloba} Kgalagadi Transfrontier Park, South Africa

Pete Oxford / Camelthorn acacia leaves and thorns {Vachellia erioloba} Kgalagadi Transfrontier Park,

Richard Du Toit / Giant eagle owl in Camelthorn tree, Kalahari Gemsbok National Park, S.Africa

Jose B. Ruiz / Camelthorn tree in Namib desert {Vachellia erioloba} Sossus Vlei, Namibia

Jose B. Ruiz / Camelthorn tree in Namib desert {Vachellia erioloba} Sossus Vlei, Namibia

Richard Du Toit / Little devil flowers (Tribulus terrestris) and acacia Grey camelthorn trees, S Africa Kalahari Gemsbok NP in summer.

Jose B. Ruiz / Camelthorn tree in Namib desert {Vachellia erioloba} Sossus Vlei, Namibia

Hiroya Minakuchi / Camelthorn Acacia (Acacia erioloba) dead trees with sand dunes in background, Dead Vlei, Namib-Naukluft National Park, Namibia

Hiroya Minakuchi / Camelthorn Acacia (Acacia erioloba) dead trees with sand dunes in background, Dead Vlei, Namib-Naukluft National Park, Namibia

Hiroya Minakuchi / Camelthorn Acacia (Acacia erioloba) dead trees with sand dunes in background, Dead Vlei, Namib-Naukluft National Park, Namibia

Martin Willis / Camelthorn Acacia (Acacia erioloba) dead trees in desert, Sossusvlei Dunes, Namib-Naukluft National Park, Namibia

Martin Willis / Camelthorn Acacia (Acacia erioloba) dead trees in desert, Sossusvlei Dunes, Namib-Naukluft National Park, Namibia

Michael & Patricia Fogden / Camelthorn Acacia (Acacia erioloba) trees among sand dunes at Sossus Vlei, Namib-Naukluft National Park, Namibia

Ingo Arndt / Camelthorn (Alhagi maurorum) trees and calcite at Dead Veil, Namib-Naukluft National Park, Namib Desert, Namibia

Eric Baccega / Ancient dead Camelthorn trees (Vachellia erioloba), Deadvlei Pan, Sossusvlei UNESCO World Heritage Site, Namib Naukluft National Park, Namibia.

Guy Edwardes / Southern carmine bee-eater (Merops nubicoides) perched in Camelthorn (Vachellia erioloba) tree, seedpod on branch below. Chobe National Park, Botswana.

Ernie Janes / Dead Camel thorn trees (Vachellia erioloba), Sossusvlei region, Namib desert, Namibia, March

Ernie Janes / Dead Camel thorn trees (Vachellia erioloba), Sossusvlei region, Namib desert, Namibia, March

Ernie Janes / Dead Camel thorn trees (Vachellia erioloba), Sossusvlei region, Namib desert, Namibia, March

Ernie Janes / Dead Camel thorn trees (Vachellia erioloba), Sossusvlei region, Namib desert, Namibia, March

Ernie Janes / Dead Camel thorn trees (Vachellia erioloba), Sossusvlei region, Namib desert, Namibia, March

David Allemand / Deadvlei with dead Camel thorn trees (Vachellia erioloba), Namib-Naukluft National Park, Namib Desert, Namibia

David Allemand / Deadvlei with dead Camel thorn trees (Vachellia erioloba), Namib-Naukluft National Park, Namib Desert, Namibia