http://www.boredpanda.com/crown-shyness-trees-avoid-touching/

The next time you’re out walking through the forest, take a moment to look above you and you might be pleasantly surprised by what you find.

The naturally occurring phenomenon is called “crown shyness” because the uppermost branches of certain tree species don’t like to touch one another.

Despite these various theories however, nobody knows for sure why this phenomenon occurs, but it serves to remind us of just how awesome mother nature can be.