Do trees hug?
According to German forester and author, Peter Wohlleben, trees are social, sophisticated and intelligent. They cooperate with each other and maintain relationships. They do this by sending chemical, hormonal and electrical signals. Not only do they communicate underground, they send pheromones and other scent signals through the air.
The Hidden Life Of Trees: Wohlleben, P.: 9780008218430: Amazon.com: Books