Scientists in Kenya have unveiled plans to save from extinction a tree whose bark is in such demand for easing prostate disorders that poachers help to fuel its supply. The healing properties of the bark of Prunus Africana are used to treat what was then called Old Man's Disease. Currently, around 3,500 tons of bark is being harvested annually, and not always sustainably as more money can be made if an entire tree is felled rather than segments of bark removed.