By Tobias Carroll When you think about deadly things in nature, what comes to mind? For most people, the answer relates to large predators — sharks and lions are both at home in the wild, and both are highly dangerous, and even deadly. But there’s another massive, deadly presence in the wild that doesn’t need to run or swim after you to have a lethal effect. It doesn’t even need to move, which is good — seeing as it’s a tree. The tree in question is known as the manchineel — and, as this article in Southern Living points out, it’s often marked with paint to let passers-by know that they should…