Barrie Britton / Baobab tree (Adansonia rubrostipa) Tsimanampetsotsa National Park, Madagascar. Photograph taken on location for BBC 'Wild Madagascar' Series, August 2009.

Nick Garbutt / Bottle Baobab (Adansonia rubrostipa) over 3000 years old. Lake Tsimanampetsotsa National Park, South West Madagascar.

Alan Watson / Baobab tree (Adansonia rubrostipa) and Sogno (Didierea madagascariensis) in spiny forest, Reniala Reserve, Madagascar

Warwick Sloss / Flower on Bottle baobab tree {Adansonia rubrostripa} Kirindy forest, Madagascar. Note - on location for BBC Planet Earth 'Forests'

Gerry Ellis / Australian Baobab (Adansonia gregorii) tree growing on grasslands, Western Australia

David Pattyn / Baobab (Adansonia rubrostipa) tree in late afternoon light, Berenty Private Reserve, southern Madagascar, August 2016.

Bernard Castelein / Boabab (Adansonia rubrostipa) Reniala Nature Reserve, Ifaty, Madagascar

Bernard Castelein / Boabab (Adansonia rubrostipa) Reniala Nature Reserve, Ifaty, Madagascar

Barrie Britton / 'Grandmother' Baobab Tree (Adansonia rubrostipa) with green foliage of rainy season. Close up of bark Lac Tsimanampetsotsa National Park, Madagascar. Photograph taken during filming for BBC 'Wild M...

Barrie Britton / 'Grandmother' Baobab Tree (Adansonia rubrostipa) with green foliage of rainy season. Lac Tsimanampetsotsa National Park, Madagascar. Photograph taken on location for BBC 'Wild Madagascar' Series, F...

Barrie Britton / Producer Mary Summerill and Field Assistant Jonathan Fiely using crane to film 'Grandmother' Baobab Tree (Adansonia rubrostipa), showing green foliage of rainy season. Lac Tsimanampetsotsa, Madagasca...

Barrie Britton / Baobab tree (Adansonia rubrostipa) showing green foliage during rainy season. Lac Tsimanampetsotsa, Madagascar. Photograph taken on location for BBC 'Wild Madagascar' Series, February 2010