The World's Hardest Tree to Climb

I remember reading an article on Environmental Graffiti, a few months ago, about the thorniest trees on Earth. The photos were really impressive, considering I had no idea such trees even existed, but I felt there wasn’t really enough information about these amazing species of trees. So I took it upon myself to do some research and came up with seven bad-ass trees you couldn’t even hope to climb without some serious protective gear.