“Crown Shyness”is a natural phenomenon in some species of trees, where the upper branches of the forest avoid touching each other. The visual effect is impressive, as it creates clearly defined boundaries, similar to cracks or rivers in the sky, when viewed from below.

Some believe that this is done to reduce the spread of harmful insects. Others believe that trees are trying to protect each other’s branches from cracking and breaking in the wind, and it has also been suggested that “crown shyness” happens so that trees can optimize light exposure to maximize the photosynthesis process done by the leaves.