Adansonia grandidieri, the biggest and most famous of Madagascar's six species of baobabs, is an endangered species threatened by the encroachment of agricultural land. These trees have massive cylindrical trunks that can reach up to 3 metres across, and are covered by a smooth, reddish-grey bark. Grandidier's Baobab have been recorded to grow up to 30 metres in height. The tree flowers between May and August and is pollinated by various nocturnal mammals such as fork-marked lemurs. They move through the canopies, inserting their snouts into the white flowers and licking nectar from the petal bases, resulting in pollen being deposited in the lemur’s face. The baobab overcomes the lack of water in Madagascar by storing water within the fibrous wood of the trunk, as the tree's diameter fluctuates with rainfall.