It is normally the huge vistas that capture the human imagination. Think of the Grand Canyon or the mammoth wonder that is Victorial Falls in southern Africa. But sometimes it's the little things that capture the eye. Yemen's Socotra Dragon tree is one such example. The detail of its branches is equisite, as if designed by an artist. It takes its name from its crimson resin, said to be dragon's blood, that was used in ancient medecines and curiously, in toothpaste.