This story appears in the June 2016 issue of National Geographic magazine ... s Manú National Park—a huge swath of protected rain forest and one of the most biodiverse parks in the world.

"Every tree matters." Staff shaken after discovering brutal damage to trees in cherished forest: 'I don't understand why ...

Nature, he says, may influence “how you allocate your attention and whether or not you focus on negative emotions.” In a “forest kindergarten” in Langnau am Albis, a suburb of Zurich ...