What’s more, biologists say the dragon tree is endangered because the limestone it grows on is rapidly being extracted to be used for concrete.

更重要的是， 生物学家说龙树濒临灭绝，因为它生长的石灰石正在迅速被提取用于混凝土。

Hard to imagine it’s gone overlooked for so long, since the dragon tree grows up to 12 meters tall and sports a crown 12 meters wide, with leaves shaped like sword blades.

很难想象它会被忽视这么久，因为龙树高达 12 米， 树冠宽 12 米， 叶子形状像剑刃。

90 percent of the reptiles on this island, 37 percent of the plant species exist here and nowhere else on earth, and that includes this species of dragon's blood tree, which actually bleeds this red resin.

这个岛屿有90%的爬虫类，37%的植物种类这里独有，包括这些龙血树，这些树会流出红色的树脂。