By Melissa Hogenboom 3 January 2017 In dry areas in the Horn of Africa, there are frankincense trees that thrive in the extreme aridity. These trees are harvested for the frankincense resin that they produce. It is used to make perfumes and incense, and can only be obtained from the wild trees. For many years, frankincense trees have faced challenges that could threaten their very survival. Now a new analysis provides hope that this downward spiral could be prevented. To…