Crown shyness
What an interesting word. 😀
“Crown shyness is a phenomenon observed in some tree species, in which the crowns of fully stocked trees do not touch each other, forming a canopy with channel-like gaps.“
How do the trees know not to touch each other?
Nobody knows though it’s been studied since the 1920′s.
Looks like distant rivers in the sky! Beautiful
A Middleground 