Alex Hyde / Boabab trees {Adansonia grandidieri} in evening light. Morondava, Madagascar, October 2009

Alex Hyde / Boabab trees {Adansonia grandidieri} in evening light. Morondava, Madagascar, October 2009

Alex Hyde / Boabab trees {Adansonia grandidieri} silhouetted at sunset. Morondava, Madagascar, October 2009

Alex Hyde / Boabab trees {Adansonia grandidieri} in evening light. Morondava, Madagascar. Digital Composite Panorama.

Jouan & Rius / Avenue of Boabab trees (Adansonia grandidieri) during raining season, Baobabs Avenue, Morondava, West Madagascar,

Pete Oxford / Boabab trees (Adansonia grandidieri) silhouetted at sunset. Madagascar

Alex Hyde / Boabab trees {Adansonia grandidieri} silhouetted at sunset. Morondava, Madagascar, October 2009

Inaki Relanzon / Close up of bark of the oldest Bottle boabab tree (Adansonia rubrostipa) in Madagascar, Tsimanampetsotse National Park, South Madagascar, May 2007

Inaki Relanzon / View up the trunk of the oldest Bottle boabab tree (Adansonia rubrostipa) in Madagascar, Tsimanampetsotse National Park, South Madagascar, May 2007

Inaki Relanzon / Bottle boabab tree (Adansonia rubrostipa) the oldest baobab in Madagascar, Tsimanampetsotse National Park, South Madagascar, May 2007

Inaki Relanzon / Close up of bark of the oldest Bottle boabab tree (Adansonia rubrostipa) in Madagascar, Tsimanampetsotse National Park, South Madagascar, May 2007

Jouan & Rius / Boabab trees (Adansonia grandidieri) next to sand track with a person walking along it, Allée des Baobabs road, Madagascar

Juergen Freund / Boabab / gourd / bottle tree {Adansonia gregorii} Kimberley, Western Australia

Staffan Widstrand / Safari vehicles and tourist camp under Baobab trees, Kalahari National Park, Botswana

Richard Du Toit / African elephant bull beside Chobe river + Boabab tree, Chobe NP, Botswana {Loxodonta africana

WILLIAM OSBORN / Prison tree, ancient Boab(ab) tree used as aboriginal prison in 1800's, Western Australia

Pete Oxford / Boabab trees (Adansonia grandidieri). Madagascar